diff --git a/.github/workflows/develop-build.yml b/.github/workflows/develop-build.yml
index 01a3b89..0688e65 100644
--- a/.github/workflows/develop-build.yml
+++ b/.github/workflows/develop-build.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/loc.yml b/.github/workflows/loc.yml
index 641c95f..68c4d1c 100644
--- a/.github/workflows/loc.yml
+++ b/.github/workflows/loc.yml
@@ -14,7 +14,7 @@ jobs:
       labels: linux-ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Count lines of code
         run: |
diff --git a/.github/workflows/main-build.yml b/.github/workflows/main-build.yml
index a25e665..a3c15fa 100644
--- a/.github/workflows/main-build.yml
+++ b/.github/workflows/main-build.yml
@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout repo
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           ref: main
           fetch-depth: 0
diff --git a/.github/workflows/main-docs.yml b/.github/workflows/main-docs.yml
index fb74cb4..a1e623e 100644
--- a/.github/workflows/main-docs.yml
+++ b/.github/workflows/main-docs.yml
@@ -21,7 +21,7 @@ jobs:
       labels: linux-ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Set up Python
         uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5