diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 9c753a9f..c2ed60f1 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,7 +13,7 @@ jobs:
         architecture: [ 'x64' ]
     name: Build with JDK ${{ matrix.java }} on ${{ matrix.architecture }}
     steps:
-      - uses: actions/checkout@v2.3.3
+      - uses: actions/checkout@v2.3.4
       - name: Setup JDK
         uses: actions/setup-java@v1
         with:
diff --git a/.github/workflows/pitest.yml b/.github/workflows/pitest.yml
index 311e0c64..5d6ce2f2 100644
--- a/.github/workflows/pitest.yml
+++ b/.github/workflows/pitest.yml
@@ -15,7 +15,7 @@ jobs:
         architecture: [ 'x64' ]
     name: Mutation Testing with JDK ${{ matrix.java }} on ${{ matrix.architecture }}
     steps:
-      - uses: actions/checkout@v2.3.3
+      - uses: actions/checkout@v2.3.4
       - name: Setup JDK
         uses: actions/setup-java@v1
         with: