diff --git a/.github/workflows/version_checker.yml b/.github/workflows/version_checker.yml
new file mode 100644
index 0000000..006e8e1
--- /dev/null
+++ b/.github/workflows/version_checker.yml
@@ -0,0 +1,17 @@
+name: version_checker
+on: [pull_request_target]
+
+jobs:
+  check-apps-for-update:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Get dependencies
+        run: |
+          echo $GITHUB_SHA
+          echo $GITHUB_REF
+          echo ${{ github.head_ref }}
+          echo ${{ github.event.pull_request.head.sha }}
+          git fetch origin +refs/heads/*:refs/remotes/origin/*
+          git diff origin/${{ github.head_ref }}
diff --git a/README.md b/README.md
index 33250cb..e9de0d8 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,2 @@
 # wooo
-Wooo ooooo
+Wooo oooooo