diff --git a/proxmox-acme/Cargo.toml b/proxmox-acme/Cargo.toml
index 5c6dc2bb..f1262836 100644
--- a/proxmox-acme/Cargo.toml
+++ b/proxmox-acme/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "proxmox-acme"
-version = "0.5.1"
+version = "0.5.2"
 description = "ACME client library"
 authors.workspace = true
 license.workspace = true
diff --git a/proxmox-acme/debian/changelog b/proxmox-acme/debian/changelog
index d80987e6..f1c46512 100644
--- a/proxmox-acme/debian/changelog
+++ b/proxmox-acme/debian/changelog
@@ -1,3 +1,11 @@
+rust-proxmox-acme (0.5.2) bookworm; urgency=medium
+
+  * allow to compile/use api types separately.
+
+  * add async-client feature
+
+ -- Proxmox Support Team <support@proxmox.com>  Thu, 16 May 2024 11:31:43 +0200
+
 rust-proxmox-acme (0.5.1) bookworm; urgency=medium
 
   * add api-types feature to provide schemas for api types
diff --git a/proxmox-acme/debian/control b/proxmox-acme/debian/control
index 7d2126fd..248b8004 100644
--- a/proxmox-acme/debian/control
+++ b/proxmox-acme/debian/control
@@ -8,6 +8,8 @@ Build-Depends: debhelper (>= 12),
  libstd-rust-dev <!nocheck>,
  librust-base64-0.13+default-dev <!nocheck>,
  librust-openssl-0.10+default-dev <!nocheck>,
+ librust-proxmox-schema-3+api-macro-dev (>= 3.1.1-~~) <!nocheck>,
+ librust-proxmox-schema-3+default-dev (>= 3.1.1-~~) <!nocheck>,
  librust-serde-1+default-dev <!nocheck>,
  librust-serde-1+derive-dev <!nocheck>,
  librust-serde-json-1+default-dev <!nocheck>
@@ -25,23 +27,19 @@ Multi-Arch: same
 Depends:
  ${misc:Depends},
  librust-base64-0.13+default-dev,
- librust-openssl-0.10+default-dev,
  librust-serde-1+default-dev,
  librust-serde-1+derive-dev,
  librust-serde-json-1+default-dev
+Recommends:
+ librust-proxmox-acme+impl-dev (= ${binary:Version})
 Suggests:
  librust-proxmox-acme+api-types-dev (= ${binary:Version}),
- librust-proxmox-acme+client-dev (= ${binary:Version}),
- librust-proxmox-acme+native-tls-dev (= ${binary:Version}),
- librust-proxmox-acme+ureq-dev (= ${binary:Version})
+ librust-proxmox-acme+async-client-dev (= ${binary:Version}),
+ librust-proxmox-acme+client-dev (= ${binary:Version})
 Provides:
- librust-proxmox-acme+default-dev (= ${binary:Version}),
  librust-proxmox-acme-0-dev (= ${binary:Version}),
- librust-proxmox-acme-0+default-dev (= ${binary:Version}),
  librust-proxmox-acme-0.5-dev (= ${binary:Version}),
- librust-proxmox-acme-0.5+default-dev (= ${binary:Version}),
- librust-proxmox-acme-0.5.1-dev (= ${binary:Version}),
- librust-proxmox-acme-0.5.1+default-dev (= ${binary:Version})
+ librust-proxmox-acme-0.5.2-dev (= ${binary:Version})
 Description: ACME client library - Rust source code
  Source code for Debianized Rust crate "proxmox-acme"
 
@@ -51,59 +49,72 @@ Multi-Arch: same
 Depends:
  ${misc:Depends},
  librust-proxmox-acme-dev (= ${binary:Version}),
- librust-proxmox-schema-3+api-macro-dev,
- librust-proxmox-schema-3+default-dev
+ librust-proxmox-schema-3+api-macro-dev (>= 3.1.1-~~),
+ librust-proxmox-schema-3+default-dev (>= 3.1.1-~~)
 Provides:
  librust-proxmox-acme-0+api-types-dev (= ${binary:Version}),
  librust-proxmox-acme-0.5+api-types-dev (= ${binary:Version}),
- librust-proxmox-acme-0.5.1+api-types-dev (= ${binary:Version})
+ librust-proxmox-acme-0.5.2+api-types-dev (= ${binary:Version})
 Description: ACME client library - feature "api-types"
  This metapackage enables feature "api-types" for the Rust proxmox-acme crate,
  by pulling in any additional dependencies needed by that feature.
 
+Package: librust-proxmox-acme+async-client-dev
+Architecture: any
+Multi-Arch: same
+Depends:
+ ${misc:Depends},
+ librust-proxmox-acme-dev (= ${binary:Version}),
+ librust-proxmox-acme+impl-dev (= ${binary:Version}),
+ librust-anyhow-1+default-dev,
+ librust-bytes-1+default-dev,
+ librust-hyper-0.14+default-dev (>= 0.14.5-~~),
+ librust-proxmox-http-0.9+client-dev,
+ librust-proxmox-http-0.9+default-dev
+Provides:
+ librust-proxmox-acme-0+async-client-dev (= ${binary:Version}),
+ librust-proxmox-acme-0.5+async-client-dev (= ${binary:Version}),
+ librust-proxmox-acme-0.5.2+async-client-dev (= ${binary:Version})
+Description: ACME client library - feature "async-client"
+ This metapackage enables feature "async-client" for the Rust proxmox-acme
+ crate, by pulling in any additional dependencies needed by that feature.
+
 Package: librust-proxmox-acme+client-dev
 Architecture: any
 Multi-Arch: same
 Depends:
  ${misc:Depends},
  librust-proxmox-acme-dev (= ${binary:Version}),
- librust-proxmox-acme+ureq-dev (= ${binary:Version}),
- librust-proxmox-acme+native-tls-dev (= ${binary:Version})
+ librust-proxmox-acme+impl-dev (= ${binary:Version}),
+ librust-native-tls-0.2+default-dev,
+ librust-ureq-2+gzip-dev (>= 2.4-~~),
+ librust-ureq-2+native-tls-dev (>= 2.4-~~)
 Provides:
  librust-proxmox-acme-0+client-dev (= ${binary:Version}),
  librust-proxmox-acme-0.5+client-dev (= ${binary:Version}),
- librust-proxmox-acme-0.5.1+client-dev (= ${binary:Version})
+ librust-proxmox-acme-0.5.2+client-dev (= ${binary:Version})
 Description: ACME client library - feature "client"
  This metapackage enables feature "client" for the Rust proxmox-acme crate, by
  pulling in any additional dependencies needed by that feature.
 
-Package: librust-proxmox-acme+native-tls-dev
+Package: librust-proxmox-acme+impl-dev
 Architecture: any
 Multi-Arch: same
 Depends:
  ${misc:Depends},
  librust-proxmox-acme-dev (= ${binary:Version}),
- librust-native-tls-0.2+default-dev
+ librust-proxmox-acme+api-types-dev (= ${binary:Version}),
+ librust-openssl-0.10+default-dev
 Provides:
- librust-proxmox-acme-0+native-tls-dev (= ${binary:Version}),
- librust-proxmox-acme-0.5+native-tls-dev (= ${binary:Version}),
- librust-proxmox-acme-0.5.1+native-tls-dev (= ${binary:Version})
-Description: ACME client library - feature "native-tls"
- This metapackage enables feature "native-tls" for the Rust proxmox-acme crate,
- by pulling in any additional dependencies needed by that feature.
-
-Package: librust-proxmox-acme+ureq-dev
-Architecture: any
-Multi-Arch: same
-Depends:
- ${misc:Depends},
- librust-proxmox-acme-dev (= ${binary:Version}),
- librust-ureq-2+gzip-dev (>= 2.4-~~),
- librust-ureq-2+native-tls-dev (>= 2.4-~~)
-Provides:
- librust-proxmox-acme-0+ureq-dev (= ${binary:Version}),
- librust-proxmox-acme-0.5+ureq-dev (= ${binary:Version}),
- librust-proxmox-acme-0.5.1+ureq-dev (= ${binary:Version})
-Description: ACME client library - feature "ureq"
- This metapackage enables feature "ureq" for the Rust proxmox-acme crate, by
+ librust-proxmox-acme+default-dev (= ${binary:Version}),
+ librust-proxmox-acme-0+impl-dev (= ${binary:Version}),
+ librust-proxmox-acme-0+default-dev (= ${binary:Version}),
+ librust-proxmox-acme-0.5+impl-dev (= ${binary:Version}),
+ librust-proxmox-acme-0.5+default-dev (= ${binary:Version}),
+ librust-proxmox-acme-0.5.2+impl-dev (= ${binary:Version}),
+ librust-proxmox-acme-0.5.2+default-dev (= ${binary:Version})
+Description: ACME client library - feature "impl" and 1 more
+ This metapackage enables feature "impl" for the Rust proxmox-acme crate, by
  pulling in any additional dependencies needed by that feature.
+ .
+ Additionally, this package also provides the "default" feature.