diff --git a/.github/workflows/docker.yaml b/.github/workflows/docker.yaml
index 6bc403e..08288f1 100644
--- a/.github/workflows/docker.yaml
+++ b/.github/workflows/docker.yaml
@@ -33,7 +33,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.1.0
       -
         name: Prepare
         id: prep
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 02561b7..43a81b6 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -6,7 +6,7 @@ jobs:
   release:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - uses: actions/setup-python@v2.2.2
       with:
         python-version: '3.8'
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 31fc8a4..3434cb0 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -6,7 +6,7 @@ jobs:
     name: pytest
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@master
+    - uses: actions/checkout@v3.1.0
     - uses: actions/setup-python@v2.2.2
       id: setup-python
       with: