diff --git a/.github/workflows/check-flake.yml b/.github/workflows/check-flake.yml
index aeedc194..11bfd385 100644
--- a/.github/workflows/check-flake.yml
+++ b/.github/workflows/check-flake.yml
@@ -1,8 +1,8 @@
 name: Check Nix flake
 on:
-  pull_request_target:
+  pull_request:
     paths:
-      - '*.nix'
+      - '**.nix'
       - flake.lock
   push:
     branches:
diff --git a/.github/workflows/update-flake-dependencies.yml b/.github/workflows/update-flake-dependencies.yml
index 85fad658..44e0e550 100644
--- a/.github/workflows/update-flake-dependencies.yml
+++ b/.github/workflows/update-flake-dependencies.yml
@@ -15,11 +15,14 @@ jobs:
     - uses: DeterminateSystems/magic-nix-cache-action@main
     - name: update flake.lock
       run: nix flake update
+    - name: Define Unique COMMIT_BRANCH by Timestamp
+      run: |
+        TIMESTAMP=$(date +'%Y-%m-%d-%H%M%S')
+        echo "COMMIT_BRANCH=automation/update-flake-dependencies-$TIMESTAMP" >> $GITHUB_ENV
     - name: Create signed commit with flake.lock changes
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         FILE_TO_COMMIT: flake.lock
-        COMMIT_BRANCH: automation/update-flake-dependencies
         COMMIT_MESSAGE: "chore(nix): Update Flake dependencies"
       run: |
           # make sure something actually changed first, if not, no updates required
diff --git a/flake.lock b/flake.lock
index 87024aec..2213a508 100644
--- a/flake.lock
+++ b/flake.lock
@@ -5,11 +5,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1710146030,
-        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
         "type": "github"
       },
       "original": {
@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1716358718,
-        "narHash": "sha256-NQbegJb2ZZnAqp2EJhWwTf6DrZXSpA6xZCEq+RGV1r0=",
+        "lastModified": 1754122398,
+        "narHash": "sha256-CyIrZ68gVLSZGa2ERK7zc2dGabvWp2A8PM6PII9M7gI=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "3f316d2a50699a78afe5e77ca486ad553169061e",
+        "rev": "c02d05bcf73fb496c604798c2268ed424a09e73e",
         "type": "github"
       },
       "original": {