diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 24f1f30..5e0c01d 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -42,7 +42,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.3.5
+        uses: actions/checkout@v2.4.0
         
       - name: Setup Python
         uses: actions/setup-python@v2
@@ -71,7 +71,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.3.5
+        uses: actions/checkout@v2.4.0
         
       - name: Setup Python
         uses: actions/setup-python@v2
@@ -110,7 +110,7 @@ jobs:
     if: always()
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.3.5
+        uses: actions/checkout@v2.4.0
         
       - name: Download tests results
         uses: actions/download-artifact@v2
@@ -159,7 +159,7 @@ jobs:
         py: ["3.7", "3.8", "3.9"]
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.3.5
+        uses: actions/checkout@v2.4.0
         
       - name: Setup Python
         uses: actions/setup-python@v2
diff --git a/.github/workflows/pull-request-done.yml b/.github/workflows/pull-request-done.yml
index f5bbcce..108f5b4 100644
--- a/.github/workflows/pull-request-done.yml
+++ b/.github/workflows/pull-request-done.yml
@@ -51,7 +51,7 @@ jobs:
     name: "Create Release"
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.4.0
 
       - name: Get the version
         id: get_version
@@ -74,7 +74,7 @@ jobs:
     name: "Generate documentation"
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.3.5
+        uses: actions/checkout@v2.4.0
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/pull-request.yml b/.github/workflows/pull-request.yml
index 66a4a1b..45ab304 100644
--- a/.github/workflows/pull-request.yml
+++ b/.github/workflows/pull-request.yml
@@ -42,7 +42,7 @@ jobs:
     name: "Lint"
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.3.5
+        uses: actions/checkout@v2.4.0
         
       - name: Setup Python
         uses: actions/setup-python@v2
@@ -72,7 +72,7 @@ jobs:
     name: "Test"
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.3.5
+        uses: actions/checkout@v2.4.0
         
       - name: Setup Python
         uses: actions/setup-python@v2
@@ -110,7 +110,7 @@ jobs:
     if: ${{ always() && github.actor != 'dependabot[bot]' }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.3.5
+        uses: actions/checkout@v2.4.0
 
       - name: Download tests results
         uses: actions/download-artifact@v2
diff --git a/.github/workflows/release-branch-create.yml b/.github/workflows/release-branch-create.yml
index 8b24793..6a3edf0 100644
--- a/.github/workflows/release-branch-create.yml
+++ b/.github/workflows/release-branch-create.yml
@@ -43,7 +43,7 @@ jobs:
     name: "Create PR"
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.4.0
 
       - name: Get the version
         id: get_version