diff --git a/renovate.json b/renovate.json
index 5db72dd..67f787b 100644
--- a/renovate.json
+++ b/renovate.json
@@ -2,5 +2,13 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
     "config:recommended"
+  ],
+  "packageRules": [
+    {
+      "matchDatasources": [
+        "docker"
+      ],
+      "pinDigests": true
+    }
   ]
 }