diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 69d0747..db81169 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -29,7 +29,7 @@ jobs:
           - python-version: 3.8
             numpy: 1.19
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
       with:
         submodules: 'recursive'
     - name: Set release name env variable (ubuntu)
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0b2e3e8..d7edc09 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -8,7 +8,7 @@ jobs:
     name: Build and publish Python 🐍 distributions 📦 to TestPyPI
     runs-on: ubuntu-18.04
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
       with:
         submodules: 'recursive'
     - name: Set up Python 3.8