diff --git a/bun-npm.json b/bun-npm.json
index 66f95d7..8f0ece7 100644
--- a/bun-npm.json
+++ b/bun-npm.json
@@ -14,11 +14,19 @@
       "matchManagers": ["npm", "bun"]
     },
     {
-      "description": "Group Bun releases",
+      "description": "Group Bun runtime version",
       "groupName": "bun version",
       "groupSlug": "bun-version",
-      "matchDatasources": ["github-tags", "docker"],
-      "matchPackageNames": ["docker.io/oven/bun", "oven-sh/bun", "Bun"]
+      "matchManagers": ["bun-version"],
+      "matchPackageNames": ["Bun", "bun"]
+    },
+    {
+      "description": "Group Bun Docker image",
+      "groupName": "bun version",
+      "groupSlug": "bun-version",
+      "matchDatasources": ["docker"],
+      "matchPackageNames": ["docker.io/oven/bun", "oven/bun"],
+      "additionalBranchPrefix": ""
     }
   ]
 }