diff --git a/renovate.json b/renovate.json
index 9977104..c1e7ec1 100644
--- a/renovate.json
+++ b/renovate.json
@@ -11,6 +11,14 @@
       "matchManagers": "droneci",
       "matchUpdateTypes": [ "minor", "patch"]
     },
+    {
+      "description": "Automatically update patch version of used container images in docker files",
+      "addLabels": [ "renovate/container-image", "renovate/automerge" ],
+      "automerge": true,
+      "matchBaseBranches": [ "master" ],
+      "matchManagers": [ "dockerfile" ],
+      "matchUpdateTypes": [ "patch" ]
+    },
     {
       "description": "Trim leading postfixadmin- from git tag",
       "addLabels": [ "renovate/postfixadmin" ],