diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index f1785b59..9ad92c41 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -36,7 +36,7 @@ jobs:
           apt-get install -y wget tar git make curl ${{ matrix.gtk_packages }}
 
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.3
         with:
           submodules: recursive
 
@@ -112,7 +112,7 @@ jobs:
         uses: microsoft/setup-msbuild@v3.0.0
 
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.3
         with:
           submodules: recursive
 
diff --git a/.github/workflows/linting.yaml b/.github/workflows/linting.yaml
index da18631f..849aa634 100644
--- a/.github/workflows/linting.yaml
+++ b/.github/workflows/linting.yaml
@@ -21,7 +21,7 @@ jobs:
           apt-get install -y wget tar git make curl
 
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.3
 
       - name: Configure clang
         uses: ./.github/actions/configure-clang
@@ -41,7 +41,7 @@ jobs:
         shell: bash
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.3
 
       - name: Install node
         uses: actions/setup-node@v6.4.0
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index aa5bdf11..4c92aa42 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -22,7 +22,7 @@ jobs:
           apt-get install -y wget tar git make curl
 
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.3
         with:
           submodules: recursive
 
@@ -57,7 +57,7 @@ jobs:
     runs-on: windows-2025-vs2026
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.3
         with:
           submodules: recursive