diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1373b7e..1891af3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,7 +19,7 @@ jobs:
     steps:
 
       - name: Initialize
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Install build dependencies
         run: sudo apt-get install -y python3-matplotlib
@@ -45,7 +45,7 @@ jobs:
     steps:
 
       - name: Initialize
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: gh-pages