diff --git a/renovate.json5 b/renovate.json5
index 75611e5bf6..7ce8a822d6 100644
--- a/renovate.json5
+++ b/renovate.json5
@@ -100,5 +100,18 @@
       "matchPackageNames": ["eclipse-temurin"],
       "enabled": false
     }
+  ],
+
+  "regexManagers": [
+    {
+      // Parse image version from .env file.
+      "fileMatch": [
+        ".env$"
+      ],
+      "datasourceTemplate": "docker",
+      "matchStrings": [
+        "IMAGE=(?<depName>.+):(?<currentValue>.+)"
+      ]
+    }
   ]
-}
\ No newline at end of file
+}