diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0d02c73..39afe6f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -23,7 +23,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
     
     - name: Install Crystal (Ubuntu)
       if: matrix.os == 'ubuntu-latest'
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 705e7d2..cbeb35b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,7 +26,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Install Crystal (Ubuntu)
       if: matrix.os == 'ubuntu-latest'
@@ -92,7 +92,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Install Crystal (Ubuntu)
       if: matrix.os == 'ubuntu-latest'
@@ -121,7 +121,7 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Install Crystal
       run: |
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index d6e9acc..7405126 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install Crystal
         uses: crystal-lang/install-crystal@v1
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index e8f2aca..3278a3d 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -28,7 +28,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         ref: ${{ github.event.release.tag_name || github.event.inputs.tag }}