diff --git a/.woodpecker.yml b/.woodpecker.yml
index d74e7af..c3ac062 100644
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@@ -31,7 +31,7 @@ steps:
     depends_on: [install]
 
   deploy-backend:
-    image: alpine
+    image: alpine:3.21
     secrets: [staging_deploy_key]
     commands:
       - apk add --no-cache openssh-client
@@ -48,7 +48,7 @@ steps:
         branch: main
 
   deploy-admin:
-    image: alpine
+    image: alpine:3.21
     secrets: [staging_deploy_key]
     commands:
       - apk add --no-cache openssh-client