diff --git a/action.yml b/action.yml
index 807cbfd..f9f0263 100644
--- a/action.yml
+++ b/action.yml
@@ -13,6 +13,9 @@ inputs:
   title:
     default: '[bot]: flake bump'
     required: false
+  post-workflow:
+    default: ''
+    required: false
 
 runs:
   using: "composite"
@@ -29,7 +32,7 @@ runs:
       run: |
         BRANCH="flake-update-$(date +%s)"
         echo "Creating branch $BRANCH"
-        git fetch --all
+        # git fetch --all
         git checkout -b "$BRANCH"
         echo branch=$BRANCH >> $GITHUB_OUTPUT
     - name: "Check for updates"
@@ -37,8 +40,9 @@ runs:
       shell: bash
       run: |
         echo "Checking for flake updates"
-        nix flake update
-        if git status --porcelain; then
+        cp flake.lock test.lock
+        nix flake update --output-lock-file test.lock
+        if ! (diff -q flake.lock test.lock); then
           echo change=true >> $GITHUB_OUTPUT
         else
           echo change=false >> $GITHUB_OUTPUT
@@ -48,26 +52,27 @@ runs:
       id: push
       if: steps.changes.outputs.change == 'true'
       run: |
-        echo "Creating PR"
+        echo "Creating PR for branch ${{ steps.clone.outputs.branch }}"
+        mv test.lock flake.lock
         git add flake.lock
         git commit -m "${{ inputs.title }}"
-        git push --force-with-lease origin "${{ steps.clone.outputs.clone.branch }}"
+        git push --force-with-lease origin "${{ steps.clone.outputs.branch }}"
 
         RESPONSE=$(curl -X 'POST' \
           "$GITHUB_SERVER_URL/api/v1/repos/$GITHUB_REPOSITORY/pulls" \
           -H 'accept: application/json' \
           -H "Authorization: token $GITHUB_TOKEN" \
           -H 'Content-type: application/json' \
-          -d "{
+          -d '{
             "base": "${{ inputs.base }}",
-            "head": "${{ steps.clone.outputs.clone.branch }}",
+            "head": "${{ steps.clone.outputs.branch }}",
             "title": "automated flake update"
-          }")
+          }')
 
         NUMBER=$(echo $RESPONSE | jq -r '.number')
         echo "Created PR $NUMBER."
         echo NUMBER=$NUMBER >> $GITHUB_OUTPUT
-    - name: "Set automerge on PR"
+    - name: "Set automerge on PR and run workflow"
       shell: bash
       if: steps.changes.outputs.change == 'true' && steps.push.outputs.number != 'null'
       run: |
@@ -82,3 +87,17 @@ runs:
             "delete_branch_after_merge": true
           }')
         echo $RESPONSE
+
+    - name: "Execute workflow on PR"
+      shell: bash
+      if: inputs.post-workflow != ''
+      run: |
+        curl -X 'POST' \
+          "$GITHUB_SERVER_URL/api/v1/repos/$GITHUB_REPOSITORY/actions/workflows/${{ inputs.post-workflow }}/dispatches" \
+          -H 'accept: application/json' \
+          -H "Authorization: token $GITHUB_TOKEN" \
+          -H 'Content-Type: application/json' \
+          -d "{ 
+            \"ref\": \"$(git rev-parse --verify HEAD)\"
+          }"
+