diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index aa7c1742..914b0c82 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -7,9 +7,6 @@ updates:
     target-branch: "master"
     schedule:
       interval: daily
-    labels:
-      - "topic: dependencies"
-      - "backport: release-25.05"
-      - "backport: release-25.11"
+    labels: ["topic: dependencies", "backport: release-25.11"]
     commit-message:
       prefix: "ci"
diff --git a/.github/workflows/update-flake.yml b/.github/workflows/update-flake.yml
index d6d2969d..31283bf8 100644
--- a/.github/workflows/update-flake.yml
+++ b/.github/workflows/update-flake.yml
@@ -16,7 +16,7 @@ jobs:
     if: vars.APP_ID
     strategy:
       matrix:
-        branch: [master, release-25.11, release-25.05]
+        branch: [master, release-25.11]
     steps:
       - id: generate-token
         uses: actions/create-github-app-token@v2