diff --git a/.github/workflows/deployment.yml b/.github/workflows/deployment.yml
index addbf2b3..78cf02c6 100644
--- a/.github/workflows/deployment.yml
+++ b/.github/workflows/deployment.yml
@@ -11,7 +11,7 @@ jobs:
     if: github.event_name != 'push'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2.3.4
       - uses: actions/setup-node@v1
         with:
           node-version: '12.x'
@@ -23,7 +23,7 @@ jobs:
     if: github.event_name != 'pull_request'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2.3.4
       - uses: actions/setup-node@v1
         with:
           node-version: '12.x'