diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 03a5d9e7d..abab6c93c 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -15,7 +15,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v2.3.4
       with:
         fetch-depth: 2
 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f117b814f..58d6840a1 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,7 +10,7 @@ jobs:
         target: [default]
     steps:
       - name: checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: run tests
         uses: reactivecircus/android-emulator-runner@v2