diff --git a/.github/workflows/deploy-docs.yml b/.github/workflows/deploy-docs.yml
index 9a8727a..5185f22 100644
--- a/.github/workflows/deploy-docs.yml
+++ b/.github/workflows/deploy-docs.yml
@@ -24,7 +24,7 @@ jobs:
         working-directory: site
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup Node
         uses: actions/setup-node@v4
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 1f05c9f..4a41c5d 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -24,7 +24,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0  # Full history for better source link support
     
@@ -58,7 +58,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0
     
diff --git a/.github/workflows/tags.yml b/.github/workflows/tags.yml
index 376c474..8f44b32 100644
--- a/.github/workflows/tags.yml
+++ b/.github/workflows/tags.yml
@@ -22,7 +22,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0