diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3141af5..11e76fe 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ jobs:
     name: Check Formatting
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2.3.4
       - uses: volta-cli/action@v1
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path
@@ -30,7 +30,7 @@ jobs:
     name: Test Broccoli Plugin
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2.3.4
       - uses: volta-cli/action@v1
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path