diff --git a/.github/workflows/crystal.yml b/.github/workflows/crystal.yml
index 57720fc..b9cf12e 100644
--- a/.github/workflows/crystal.yml
+++ b/.github/workflows/crystal.yml
@@ -12,7 +12,7 @@ jobs:
     container:
       image: crystallang/crystal
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Install dependencies
         run: shards install
       - name: Check format
@@ -22,7 +22,7 @@ jobs:
     container:
       image: crystallang/crystal
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Install dependencies
         run: shards install
       - name: Check ameba
@@ -32,7 +32,7 @@ jobs:
     container:
       image: crystallang/crystal
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Install dependencies
         run: shards install
       - name: Run tests
@@ -42,7 +42,7 @@ jobs:
     container:
       image: crystallang/crystal:nightly
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Install dependencies
         run: shards install
       - name: Run tests
diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 92138e6..ea049d6 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -10,7 +10,7 @@ jobs:
     container:
       image: crystallang/crystal
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Install dependencies
         run: shards install
       - name: Generate documentation