diff --git a/Cargo.toml b/Cargo.toml
index 07283bb59..e88366afb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -76,7 +76,7 @@ proxmox-section-config = "2"
 proxmox-serde = "0.1.1"
 proxmox-shared-memory = "0.3.0"
 proxmox-sortable-macro = "0.1.2"
-proxmox-subscription = { version = "0.4", features = [ "api-types" ] }
+proxmox-subscription = { version = "0.4.2", features = [ "api-types" ] }
 proxmox-sys = "0.5.0"
 proxmox-tfa = { version = "4.0.4", features = [ "api", "api-types" ] }
 proxmox-time = "1.1.2"
diff --git a/debian/control b/debian/control
index dee9ce1fc..996b4a397 100644
--- a/debian/control
+++ b/debian/control
@@ -85,8 +85,8 @@ Build-Depends: bash-completion,
                librust-proxmox-serde-0.1+serde-json-dev (>= 0.1.1-~~),
                librust-proxmox-shared-memory-0.3+default-dev,
                librust-proxmox-sortable-macro-0.1+default-dev (>= 0.1.2-~~),
-               librust-proxmox-subscription-0.4+api-types-dev,
-               librust-proxmox-subscription-0.4+default-dev,
+               librust-proxmox-subscription-0.4+api-types-dev (>= 0.4.2-~~),
+               librust-proxmox-subscription-0.4+default-dev (>= 0.4.2-~~),
                librust-proxmox-sys-0.5+acl-dev,
                librust-proxmox-sys-0.5+crypt-dev,
                librust-proxmox-sys-0.5+default-dev,
diff --git a/src/bin/proxmox_backup_manager/subscription.rs b/src/bin/proxmox_backup_manager/subscription.rs
index 66161af71..12f09ecfd 100644
--- a/src/bin/proxmox_backup_manager/subscription.rs
+++ b/src/bin/proxmox_backup_manager/subscription.rs
@@ -3,7 +3,7 @@ use serde_json::Value;
 
 use proxmox_router::{cli::*, ApiHandler, RpcEnvironment};
 use proxmox_schema::api;
-use proxmox_subscription::SubscriptionInfo;
+use proxmox_subscription::{ProductType, SubscriptionInfo};
 
 use proxmox_backup::api2::{self, node::subscription::subscription_file_opts};
 
@@ -51,6 +51,12 @@ pub fn set_offline_subscription_key(data: String) -> Result<(), Error> {
     if !info.is_signed() {
         bail!("Offline subscription key must be signed!");
     }
+
+    let product_type = info.get_product_type()?;
+    if product_type != ProductType::Pbs {
+        bail!("Subscription is not a PBS subscription ({product_type})!");
+    }
+
     info.check_signature(&[proxmox_subscription::files::DEFAULT_SIGNING_KEY]);
     info.check_age(false);
     info.check_server_id();