diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b2edbce..5206d8c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
           crystal: ${{ matrix.crystal }}
 
       - name: Download source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install dependencies
         run: shards install
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index ded57f7..a4a2c82 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -18,7 +18,7 @@ jobs:
         uses: crystal-lang/install-crystal@v1
 
       - name: Download source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install dependencies
         run: shards install