diff --git a/.github/workflows/update-flake.yml b/.github/workflows/update-flake.yml
index 3e806cf..094fc6d 100644
--- a/.github/workflows/update-flake.yml
+++ b/.github/workflows/update-flake.yml
@@ -28,7 +28,7 @@ jobs:
         signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'
     - name: Update flake.lock
       id: flakeupdate
-      uses: DeterminateSystems/update-flake-lock@834c491b2ece4de0bbd00d85214bb5e83b4da5c6 # v28
+      uses: DeterminateSystems/update-flake-lock@da03c0f078bc4b2c37ee4f7e072d34bf8f188bb3 # v29
       with:
         token: ${{ secrets.PAT_FLAKE_UPDATE }}
         branch: "automation/flake-update"