diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4985b2f..85fe2eb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: macos-latest
     steps:
       - name: Checkout action repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           path: docc-action
 
@@ -77,7 +77,7 @@ jobs:
     runs-on: macos-latest
     steps:
       - name: Checkout action repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           path: action
 
@@ -162,7 +162,7 @@ jobs:
     runs-on: macos-latest
     steps:
       - name: Checkout action repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           path: action
 
@@ -239,7 +239,7 @@ jobs:
     runs-on: macos-latest
     steps:
       - name: Checkout action repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           path: action