diff --git a/shell-completion/bash/bootctl b/shell-completion/bash/bootctl
index 11062e1b7ad..9214af53506 100644
--- a/shell-completion/bash/bootctl
+++ b/shell-completion/bash/bootctl
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/busctl b/shell-completion/bash/busctl
index 1cc41d46187..ee51c84c0b0 100644
--- a/shell-completion/bash/busctl
+++ b/shell-completion/bash/busctl
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/coredumpctl b/shell-completion/bash/coredumpctl
index b43338eb21d..5416e9e58a7 100644
--- a/shell-completion/bash/coredumpctl
+++ b/shell-completion/bash/coredumpctl
@@ -16,7 +16,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/homectl b/shell-completion/bash/homectl
index 42ad221bb4f..58a9c14c9e4 100644
--- a/shell-completion/bash/homectl
+++ b/shell-completion/bash/homectl
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/hostnamectl b/shell-completion/bash/hostnamectl
index 6f1909b5994..63edc084aeb 100644
--- a/shell-completion/bash/hostnamectl
+++ b/shell-completion/bash/hostnamectl
@@ -16,7 +16,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/journalctl b/shell-completion/bash/journalctl
index 9a55c2d62d7..a1cfdb035c5 100644
--- a/shell-completion/bash/journalctl
+++ b/shell-completion/bash/journalctl
@@ -16,7 +16,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/kernel-install b/shell-completion/bash/kernel-install
index 35c44ea3a84..4708777507b 100644
--- a/shell-completion/bash/kernel-install
+++ b/shell-completion/bash/kernel-install
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 _kernel_install() {
     local comps
diff --git a/shell-completion/bash/localectl b/shell-completion/bash/localectl
index 987ae34cc91..b601343a6b6 100644
--- a/shell-completion/bash/localectl
+++ b/shell-completion/bash/localectl
@@ -16,7 +16,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/loginctl b/shell-completion/bash/loginctl
index 2d03fcca3ed..b98b019aa4c 100644
--- a/shell-completion/bash/loginctl
+++ b/shell-completion/bash/loginctl
@@ -16,7 +16,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/machinectl b/shell-completion/bash/machinectl
index 0227167928a..b37b0597089 100644
--- a/shell-completion/bash/machinectl
+++ b/shell-completion/bash/machinectl
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word() {
     local w word=$1; shift
diff --git a/shell-completion/bash/networkctl b/shell-completion/bash/networkctl
index 40ac13abf86..db59a9ce347 100644
--- a/shell-completion/bash/networkctl
+++ b/shell-completion/bash/networkctl
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/oomctl b/shell-completion/bash/oomctl
index cc778199c9a..dc45ba58c03 100644
--- a/shell-completion/bash/oomctl
+++ b/shell-completion/bash/oomctl
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/portablectl b/shell-completion/bash/portablectl
index a0ccc733adb..2baafb74860 100644
--- a/shell-completion/bash/portablectl
+++ b/shell-completion/bash/portablectl
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/resolvectl b/shell-completion/bash/resolvectl
index fa4a27a8aec..21f80143c3f 100644
--- a/shell-completion/bash/resolvectl
+++ b/shell-completion/bash/resolvectl
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/systemd-analyze b/shell-completion/bash/systemd-analyze
index 7a1104c0ad9..9fe984d87c5 100644
--- a/shell-completion/bash/systemd-analyze
+++ b/shell-completion/bash/systemd-analyze
@@ -16,7 +16,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/systemd-cat b/shell-completion/bash/systemd-cat
index 737f33981bb..b209140804d 100644
--- a/shell-completion/bash/systemd-cat
+++ b/shell-completion/bash/systemd-cat
@@ -15,7 +15,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word() {
     local w word=$1; shift
diff --git a/shell-completion/bash/systemd-cgls b/shell-completion/bash/systemd-cgls
index f3a334f02d5..19307f9ed1b 100644
--- a/shell-completion/bash/systemd-cgls
+++ b/shell-completion/bash/systemd-cgls
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word() {
     local w word=$1; shift
diff --git a/shell-completion/bash/systemd-cgtop b/shell-completion/bash/systemd-cgtop
index 2c59b6c9f69..c9092600980 100644
--- a/shell-completion/bash/systemd-cgtop
+++ b/shell-completion/bash/systemd-cgtop
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word() {
     local w word=$1; shift
diff --git a/shell-completion/bash/systemd-cryptenroll b/shell-completion/bash/systemd-cryptenroll
index 10a35ccaacb..132cf27f314 100644
--- a/shell-completion/bash/systemd-cryptenroll
+++ b/shell-completion/bash/systemd-cryptenroll
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word() {
     local w word=$1; shift
diff --git a/shell-completion/bash/systemd-delta b/shell-completion/bash/systemd-delta
index f94c1285332..b148755d087 100644
--- a/shell-completion/bash/systemd-delta
+++ b/shell-completion/bash/systemd-delta
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word() {
     local w word=$1; shift
diff --git a/shell-completion/bash/systemd-detect-virt b/shell-completion/bash/systemd-detect-virt
index 0c9da3a22e1..05e44903e0a 100644
--- a/shell-completion/bash/systemd-detect-virt
+++ b/shell-completion/bash/systemd-detect-virt
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word() {
     local w word=$1; shift
diff --git a/shell-completion/bash/systemd-id128 b/shell-completion/bash/systemd-id128
index e882720549a..1c196391c80 100644
--- a/shell-completion/bash/systemd-id128
+++ b/shell-completion/bash/systemd-id128
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/systemd-nspawn b/shell-completion/bash/systemd-nspawn
index 3b6d65d96a9..fbc953f56ed 100644
--- a/shell-completion/bash/systemd-nspawn
+++ b/shell-completion/bash/systemd-nspawn
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word() {
     local w word=$1; shift
diff --git a/shell-completion/bash/systemd-path b/shell-completion/bash/systemd-path
index 4330c3e05b3..40e2f7ec486 100644
--- a/shell-completion/bash/systemd-path
+++ b/shell-completion/bash/systemd-path
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/systemd-resolve b/shell-completion/bash/systemd-resolve
index a52a610a32b..20d904aedfc 100644
--- a/shell-completion/bash/systemd-resolve
+++ b/shell-completion/bash/systemd-resolve
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/systemd-run b/shell-completion/bash/systemd-run
index c5db8b77bd8..24853b28b4e 100644
--- a/shell-completion/bash/systemd-run
+++ b/shell-completion/bash/systemd-run
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __systemctl() {
     local mode=$1; shift 1
diff --git a/shell-completion/bash/timedatectl b/shell-completion/bash/timedatectl
index 685b79d7ea1..962fd6e37d5 100644
--- a/shell-completion/bash/timedatectl
+++ b/shell-completion/bash/timedatectl
@@ -16,7 +16,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/bash/udevadm b/shell-completion/bash/udevadm
index 76463212cd8..99d4aa55c98 100644
--- a/shell-completion/bash/udevadm
+++ b/shell-completion/bash/udevadm
@@ -16,7 +16,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 __contains_word () {
     local w word=$1; shift
diff --git a/shell-completion/zsh/_busctl b/shell-completion/zsh/_busctl
index 6b8d8a2eaf4..0cb1c44a43c 100644
--- a/shell-completion/zsh/_busctl
+++ b/shell-completion/zsh/_busctl
@@ -16,7 +16,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 (( $+functions[_busctl_commands] )) || _busctl_commands()
 {
diff --git a/shell-completion/zsh/_resolvectl b/shell-completion/zsh/_resolvectl
index eafc1ff42a2..4363ce702a5 100644
--- a/shell-completion/zsh/_resolvectl
+++ b/shell-completion/zsh/_resolvectl
@@ -14,7 +14,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 (( $+functions[_resolvectl_protocols] )) ||
     _resolvectl_protocols() {
diff --git a/src/basic/macro.h b/src/basic/macro.h
index e3ee7bfee9e..bcac55620e2 100644
--- a/src/basic/macro.h
+++ b/src/basic/macro.h
@@ -324,7 +324,7 @@ static inline int __coverity_check_and_return__(int condition) {
 #ifndef thread_local
 /*
  * Don't break on glibc < 2.16 that doesn't define __STDC_NO_THREADS__
- * see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53769
+ * see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53769
  */
 #if __STDC_VERSION__ >= 201112L && !(defined(__STDC_NO_THREADS__) || (defined(__GNU_LIBRARY__) && __GLIBC__ == 2 && __GLIBC_MINOR__ < 16))
 #define thread_local _Thread_local
diff --git a/src/kernel-install/50-depmod.install b/src/kernel-install/50-depmod.install
index 61afdd4e9cd..67319afe61d 100644
--- a/src/kernel-install/50-depmod.install
+++ b/src/kernel-install/50-depmod.install
@@ -16,7 +16,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 COMMAND="$1"
 KERNEL_VERSION="$2"
diff --git a/src/kernel-install/90-loaderentry.install b/src/kernel-install/90-loaderentry.install
index d26766accc8..549437c7cde 100644
--- a/src/kernel-install/90-loaderentry.install
+++ b/src/kernel-install/90-loaderentry.install
@@ -16,7 +16,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 COMMAND="$1"
 KERNEL_VERSION="$2"
diff --git a/src/kernel-install/kernel-install.in b/src/kernel-install/kernel-install.in
index 2e1965852ec..96084860fd7 100755
--- a/src/kernel-install/kernel-install.in
+++ b/src/kernel-install/kernel-install.in
@@ -16,7 +16,7 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public License
-# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+# along with systemd; If not, see <https://www.gnu.org/licenses/>.
 
 skip_remaining=77
 
diff --git a/src/systemd/_sd-common.h b/src/systemd/_sd-common.h
index e121429640b..38449463e24 100644
--- a/src/systemd/_sd-common.h
+++ b/src/systemd/_sd-common.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 /* This is a private header; never even think of including this directly! */
diff --git a/src/systemd/sd-bus-protocol.h b/src/systemd/sd-bus-protocol.h
index ed96cdbab13..1581642275b 100644
--- a/src/systemd/sd-bus-protocol.h
+++ b/src/systemd/sd-bus-protocol.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include "_sd-common.h"
diff --git a/src/systemd/sd-bus-vtable.h b/src/systemd/sd-bus-vtable.h
index bed6160042d..5e80ea895d4 100644
--- a/src/systemd/sd-bus-vtable.h
+++ b/src/systemd/sd-bus-vtable.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include "_sd-common.h"
diff --git a/src/systemd/sd-bus.h b/src/systemd/sd-bus.h
index 1f3e462a0d2..cad37d64ba8 100644
--- a/src/systemd/sd-bus.h
+++ b/src/systemd/sd-bus.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <inttypes.h>
diff --git a/src/systemd/sd-daemon.h b/src/systemd/sd-daemon.h
index f42a5d89669..442b0ac604e 100644
--- a/src/systemd/sd-daemon.h
+++ b/src/systemd/sd-daemon.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <inttypes.h>
diff --git a/src/systemd/sd-device.h b/src/systemd/sd-device.h
index 55b0338ffe2..f8d7f225a97 100644
--- a/src/systemd/sd-device.h
+++ b/src/systemd/sd-device.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <errno.h>
diff --git a/src/systemd/sd-dhcp-client.h b/src/systemd/sd-dhcp-client.h
index da0d9d2b8be..855f938b091 100644
--- a/src/systemd/sd-dhcp-client.h
+++ b/src/systemd/sd-dhcp-client.h
@@ -16,7 +16,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <inttypes.h>
diff --git a/src/systemd/sd-dhcp-lease.h b/src/systemd/sd-dhcp-lease.h
index 2a7e720fea5..3f21826b8a6 100644
--- a/src/systemd/sd-dhcp-lease.h
+++ b/src/systemd/sd-dhcp-lease.h
@@ -15,7 +15,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <errno.h>
diff --git a/src/systemd/sd-dhcp-option.h b/src/systemd/sd-dhcp-option.h
index 71aa479b5eb..ce8fd6f8bad 100644
--- a/src/systemd/sd-dhcp-option.h
+++ b/src/systemd/sd-dhcp-option.h
@@ -15,7 +15,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <inttypes.h>
diff --git a/src/systemd/sd-dhcp-server.h b/src/systemd/sd-dhcp-server.h
index a8ca76d2ae3..0fc1748c9bb 100644
--- a/src/systemd/sd-dhcp-server.h
+++ b/src/systemd/sd-dhcp-server.h
@@ -15,7 +15,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <inttypes.h>
diff --git a/src/systemd/sd-dhcp6-client.h b/src/systemd/sd-dhcp6-client.h
index 77139a664b5..7fe60c356c8 100644
--- a/src/systemd/sd-dhcp6-client.h
+++ b/src/systemd/sd-dhcp6-client.h
@@ -16,7 +16,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <inttypes.h>
diff --git a/src/systemd/sd-dhcp6-lease.h b/src/systemd/sd-dhcp6-lease.h
index 472276def1b..716f6fc17c6 100644
--- a/src/systemd/sd-dhcp6-lease.h
+++ b/src/systemd/sd-dhcp6-lease.h
@@ -16,7 +16,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <inttypes.h>
diff --git a/src/systemd/sd-dhcp6-option.h b/src/systemd/sd-dhcp6-option.h
index ddb2c7cecdf..b4b4671e4a2 100644
--- a/src/systemd/sd-dhcp6-option.h
+++ b/src/systemd/sd-dhcp6-option.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <inttypes.h>
diff --git a/src/systemd/sd-event.h b/src/systemd/sd-event.h
index 63984eef159..e782339c4ac 100644
--- a/src/systemd/sd-event.h
+++ b/src/systemd/sd-event.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <inttypes.h>
diff --git a/src/systemd/sd-hwdb.h b/src/systemd/sd-hwdb.h
index 9eee1c192b6..ff880f15db4 100644
--- a/src/systemd/sd-hwdb.h
+++ b/src/systemd/sd-hwdb.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include "_sd-common.h"
diff --git a/src/systemd/sd-id128.h b/src/systemd/sd-id128.h
index f7d3244bb38..cf87e8820fd 100644
--- a/src/systemd/sd-id128.h
+++ b/src/systemd/sd-id128.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <inttypes.h>
diff --git a/src/systemd/sd-ipv4acd.h b/src/systemd/sd-ipv4acd.h
index 24a0bab7e4e..b5e253dbc2c 100644
--- a/src/systemd/sd-ipv4acd.h
+++ b/src/systemd/sd-ipv4acd.h
@@ -15,7 +15,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <net/ethernet.h>
diff --git a/src/systemd/sd-ipv4ll.h b/src/systemd/sd-ipv4ll.h
index 58f6f169ecf..35e4679a0db 100644
--- a/src/systemd/sd-ipv4ll.h
+++ b/src/systemd/sd-ipv4ll.h
@@ -16,7 +16,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <net/ethernet.h>
diff --git a/src/systemd/sd-journal.h b/src/systemd/sd-journal.h
index 03696eb1af9..24638f1e0ab 100644
--- a/src/systemd/sd-journal.h
+++ b/src/systemd/sd-journal.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <inttypes.h>
diff --git a/src/systemd/sd-lldp-rx.h b/src/systemd/sd-lldp-rx.h
index fbbe7dc22a4..504d7f59c15 100644
--- a/src/systemd/sd-lldp-rx.h
+++ b/src/systemd/sd-lldp-rx.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <errno.h>
diff --git a/src/systemd/sd-lldp-tx.h b/src/systemd/sd-lldp-tx.h
index 349a2716eb3..2eeb6b654f0 100644
--- a/src/systemd/sd-lldp-tx.h
+++ b/src/systemd/sd-lldp-tx.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <errno.h>
diff --git a/src/systemd/sd-lldp.h b/src/systemd/sd-lldp.h
index b55c5512f93..4069c5b2999 100644
--- a/src/systemd/sd-lldp.h
+++ b/src/systemd/sd-lldp.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <inttypes.h>
diff --git a/src/systemd/sd-login.h b/src/systemd/sd-login.h
index d3ad6abef12..54970532eca 100644
--- a/src/systemd/sd-login.h
+++ b/src/systemd/sd-login.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <inttypes.h>
diff --git a/src/systemd/sd-messages.h b/src/systemd/sd-messages.h
index f3cca758a0c..7238137e318 100644
--- a/src/systemd/sd-messages.h
+++ b/src/systemd/sd-messages.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include "sd-id128.h"
diff --git a/src/systemd/sd-ndisc.h b/src/systemd/sd-ndisc.h
index 8d457a51e71..ee309a4253e 100644
--- a/src/systemd/sd-ndisc.h
+++ b/src/systemd/sd-ndisc.h
@@ -16,7 +16,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <errno.h>
diff --git a/src/systemd/sd-netlink.h b/src/systemd/sd-netlink.h
index 6030d9f9e82..2f748df2b5e 100644
--- a/src/systemd/sd-netlink.h
+++ b/src/systemd/sd-netlink.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <errno.h>
diff --git a/src/systemd/sd-network.h b/src/systemd/sd-network.h
index a74a4964b77..dfbbc28276a 100644
--- a/src/systemd/sd-network.h
+++ b/src/systemd/sd-network.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <inttypes.h>
diff --git a/src/systemd/sd-path.h b/src/systemd/sd-path.h
index 80c2a672ec1..161a8e0c8d1 100644
--- a/src/systemd/sd-path.h
+++ b/src/systemd/sd-path.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <inttypes.h>
diff --git a/src/systemd/sd-radv.h b/src/systemd/sd-radv.h
index 6eeb92c48b1..5e8d06f18f4 100644
--- a/src/systemd/sd-radv.h
+++ b/src/systemd/sd-radv.h
@@ -16,7 +16,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include <inttypes.h>
diff --git a/src/systemd/sd-resolve.h b/src/systemd/sd-resolve.h
index 96b974306d6..f5dfae8ff69 100644
--- a/src/systemd/sd-resolve.h
+++ b/src/systemd/sd-resolve.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 /* 'struct addrinfo' needs _GNU_SOURCE */
diff --git a/src/systemd/sd-utf8.h b/src/systemd/sd-utf8.h
index 57013d011fc..556b21506ff 100644
--- a/src/systemd/sd-utf8.h
+++ b/src/systemd/sd-utf8.h
@@ -14,7 +14,7 @@
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+  along with systemd; If not, see <https://www.gnu.org/licenses/>.
 ***/
 
 #include "_sd-common.h"