Post PR on workflow_run
diff --git a/.github/workflows/post_pr_comment.yml b/.github/workflows/post_pr_comment.yml
new file mode 100644
index 0000000..9224497
--- /dev/null
+++ b/.github/workflows/post_pr_comment.yml
@@ -0,0 +1,21 @@
+name: Use the data
+
+on:
+  workflow_run:
+    workflows: [Validate]
+    types:
+      - completed
+
+jobs:
+  post-comment:
+     runs-on: ubuntu-latest
+     steps:
+      - name: 'Post PR comment'
+        uses: mshick/add-pr-comment@v2
+        if: github.event_name == 'pull_request'
+        with:
+          message-id: ${{ github.sha }}
+          message: |
+            **Snapshot Tests**
+            **API 23**: [Report](https://happo.io/a/27/report/${{ github.sha }}-android23) [Diff](https://happo.io/a/27/p/27/compare/master-android23/${{ github.sha }}-android23)
+            **API 31**: [Report](https://happo.io/a/27/report/${{ github.sha }}-android31) [Diff](https://happo.io/a/27/p/27/compare/master-android31/${{ github.sha }}-android31)
\ No newline at end of file
diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 3b32479..b70b721 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -86,14 +86,6 @@
             model=Pixel2,version=23
             model=Pixel2,version=31
           outputs-dir: build/test-results
-      - uses: mshick/add-pr-comment@v2
-        if: github.event_name == 'pull_request'
-        with:
-          message-id: ${{ github.sha }}
-          message: |
-            **Snapshot Tests**
-            **API 23**: [Report](https://happo.io/a/27/report/${{ github.sha }}-android23) [Diff](https://happo.io/a/27/p/27/compare/master-android23/${{ github.sha }}-android23)
-            **API 31**: [Report](https://happo.io/a/27/report/${{ github.sha }}-android31) [Diff](https://happo.io/a/27/p/27/compare/master-android31/${{ github.sha }}-android31)
   deploy:
     if: github.event_name == 'push' && github.repository == 'airbnb/lottie-android' && github.ref == 'refs/heads/master'
     runs-on: ubuntu-latest