diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a0595c47b..e0834d4db 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -32,7 +32,7 @@ jobs:
           - met-upperair
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
       - uses: actions/setup-node@v6
@@ -65,7 +65,7 @@ jobs:
           - met-upperair
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: recursive
 
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 9f08c613f..e5680ed46 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -39,7 +39,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index cfad4d5ba..cbad63e00 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -20,7 +20,7 @@ jobs:
     name: Build Documentation
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
         with:
           python-version: '3.8'
diff --git a/.github/workflows/trivy-repo-analysis.yml b/.github/workflows/trivy-repo-analysis.yml
index e9648a0da..f2b9ce442 100644
--- a/.github/workflows/trivy-repo-analysis.yml
+++ b/.github/workflows/trivy-repo-analysis.yml
@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Run Trivy vulnerability scanner in repo mode
         uses: aquasecurity/trivy-action@master