diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 53094d0f..b15c8f89 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v4
         with:
@@ -40,7 +40,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v4
         with:
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index eda2af6b..1371e44b 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -24,7 +24,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v2
diff --git a/.github/workflows/cwltool.yml b/.github/workflows/cwltool.yml
index 820f385f..996c9710 100644
--- a/.github/workflows/cwltool.yml
+++ b/.github/workflows/cwltool.yml
@@ -17,7 +17,7 @@ jobs:
     env:
       CWLTOOL_OPTIONS: "--parallel --relax-path-checks"
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v4
         with:
diff --git a/.github/workflows/spellcheck.yml b/.github/workflows/spellcheck.yml
index 496f84c1..849fb6d6 100644
--- a/.github/workflows/spellcheck.yml
+++ b/.github/workflows/spellcheck.yml
@@ -11,7 +11,7 @@ jobs:
     name: Spellcheck
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Codespell with annotations
         uses: codespell-project/actions-codespell@v2.0
         with: