diff --git a/.github/workflows/compile-examples.yml b/.github/workflows/compile-examples.yml
index 4db59c254..5f1cf453f 100644
--- a/.github/workflows/compile-examples.yml
+++ b/.github/workflows/compile-examples.yml
@@ -87,7 +87,7 @@ jobs:
         run: mv "$GITHUB_WORKSPACE/ArduinoCore-API/api" "$GITHUB_WORKSPACE/cores/arduino"   
 
       - name: Compile examples
-        uses: arduino/compile-sketches@main
+        uses: arduino/compile-sketches@v1
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           fqbn: ${{ matrix.board.fqbn }}
diff --git a/.github/workflows/report-size-deltas.yml b/.github/workflows/report-size-deltas.yml
index 9d18a73ef..02ef7af3c 100644
--- a/.github/workflows/report-size-deltas.yml
+++ b/.github/workflows/report-size-deltas.yml
@@ -8,7 +8,7 @@ jobs:
 
     steps:
       - name: Comment size deltas reports to PRs
-        uses: arduino/report-size-deltas@main
+        uses: arduino/report-size-deltas@v1
         with:
           # The name of the workflow artifact created by the sketch compilation workflow
           sketches-reports-source: sketches-reports