diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4dff011..fd0bb3c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,6 +7,8 @@ on:
     - cron: "0 0 * * 0"
 
 env:
+  # renovate: datasource=docker depName=alpine versioning=docker
+  ALPINE_VERSION: "3.20"
   LATEST_POSTGRES_VERSION: "17"
 
 jobs:
@@ -81,7 +83,7 @@ jobs:
       matrix:
         operating_system:
           - flavor: "alpine"
-            version: "3.20"
+            version: "${{ env.ALPINE_VERSION }}"
           - flavor: "bookworm"
         pg_target:
           - "12"
diff --git a/renovate.json b/renovate.json
index 0b293f6..236ec80 100644
--- a/renovate.json
+++ b/renovate.json
@@ -2,6 +2,7 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
     "config:recommended",
-    "customManagers:dockerfileVersions"
+    "customManagers:dockerfileVersions",
+    "customManagers:githubActionsVersions"
   ]
 }