diff --git a/.github/workflows/pre-release.yml b/.github/workflows/pre-release.yml
index 44750dd..623b319 100644
--- a/.github/workflows/pre-release.yml
+++ b/.github/workflows/pre-release.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           fetch-depth: 2
 
diff --git a/.github/workflows/presubmit.yml b/.github/workflows/presubmit.yml
index 4525139..8149909 100644
--- a/.github/workflows/presubmit.yml
+++ b/.github/workflows/presubmit.yml
@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Check out repository
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           fetch-depth: 2
 
@@ -37,7 +37,7 @@ jobs:
 
     steps:
       - name: Check out repository
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           fetch-depth: 2
 
diff --git a/.github/workflows/publish-to-npm-on-tag.yml b/.github/workflows/publish-to-npm-on-tag.yml
index 007474e..1ee30b0 100644
--- a/.github/workflows/publish-to-npm-on-tag.yml
+++ b/.github/workflows/publish-to-npm-on-tag.yml
@@ -25,7 +25,7 @@ jobs:
     if: ${{ (github.event_name != 'workflow_dispatch') || (inputs.npm-publish && always()) }}
     steps:
       - name: Check out repository
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           fetch-depth: 2
 
@@ -58,7 +58,7 @@ jobs:
     if: ${{ (github.event_name != 'workflow_dispatch' && needs.publish-to-npm.result == 'success') || (inputs.mcp-publish && always()) }}
     steps:
       - name: Check out repository
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           fetch-depth: 2
 
diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 52d85e5..954c098 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -26,7 +26,7 @@ jobs:
           - 24
     steps:
       - name: Check out repository
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           fetch-depth: 2