diff --git a/proxmox-subscription/Cargo.toml b/proxmox-subscription/Cargo.toml
index ab28efb0..84876211 100644
--- a/proxmox-subscription/Cargo.toml
+++ b/proxmox-subscription/Cargo.toml
@@ -13,13 +13,13 @@ rust-version.workspace = true
 
 [dependencies]
 anyhow.workspace = true
-base64 = { workspace = true, optional = true }
 hex = { workspace = true, optional = true }
 openssl = { workspace = true, optional = true }
 regex.workspace = true
 serde.workspace = true
 serde_json.workspace = true
 
+proxmox-base64 = { workspace = true, optional = true }
 proxmox-http = { workspace = true, optional = true, features = ["client-trait", "http-helpers"] }
 proxmox-serde.workspace = true
 proxmox-sys = { workspace = true, optional = true }
@@ -29,5 +29,5 @@ proxmox-schema = { workspace = true, features = ["api-macro"], optional = true }
 
 [features]
 default = ["impl"]
-impl = [ "dep:base64", "dep:hex", "dep:openssl", "dep:proxmox-http", "dep:proxmox-sys", "dep:proxmox-time"]
+impl = [ "dep:proxmox-base64", "dep:hex", "dep:openssl", "dep:proxmox-http", "dep:proxmox-sys", "dep:proxmox-time"]
 api-types = ["dep:proxmox-schema"]
diff --git a/proxmox-subscription/src/files.rs b/proxmox-subscription/src/files.rs
index 37008f4a..39f05ca5 100644
--- a/proxmox-subscription/src/files.rs
+++ b/proxmox-subscription/src/files.rs
@@ -21,7 +21,7 @@ fn parse_subscription_file(raw: &str) -> Result<Option<SubscriptionInfo>, Error>
     };
     // second line is checksum of encoded data
     let checksum = if let Some(csum) = cfg.next() {
-        base64::decode(csum)?
+        proxmox_base64::decode(csum)?
     } else {
         return Ok(None);
     };
@@ -35,7 +35,7 @@ fn parse_subscription_file(raw: &str) -> Result<Option<SubscriptionInfo>, Error>
     let mut encoded = encoded_with_newlines.clone();
     encoded.retain(|c| c != '\n');
 
-    let decoded = base64::decode(&encoded)?;
+    let decoded = proxmox_base64::decode(&encoded)?;
     let decoded = std::str::from_utf8(&decoded)?;
 
     let info: SubscriptionInfo = serde_json::from_str(decoded)?;
@@ -116,14 +116,14 @@ pub fn write_subscription<P: AsRef<Path>>(
     } else if let SubscriptionStatus::New = info.status {
         format!("{}\n", info.key.as_ref().unwrap())
     } else {
-        let encoded = base64::encode(serde_json::to_string(&info)?);
+        let encoded = proxmox_base64::encode(serde_json::to_string(&info)?);
         let csum = format!(
             "{}{}{}",
             info.checktime.unwrap_or(0),
             encoded,
             SHARED_KEY_DATA
         );
-        let csum = base64::encode(md5sum(csum.as_bytes())?);
+        let csum = proxmox_base64::encode(md5sum(csum.as_bytes())?);
         format!("{}\n{}\n{}\n", info.key.as_ref().unwrap(), csum, encoded)
     };