diff --git a/.github/workflows/benchmarks.yml b/.github/workflows/benchmarks.yml
index 02383b89..9d925bdb 100644
--- a/.github/workflows/benchmarks.yml
+++ b/.github/workflows/benchmarks.yml
@@ -13,7 +13,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2.3.4
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v1
       with:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d31121da..d15d38e6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
         node-version: [12.x, 14.x]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v1
         with: