diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3f6bbb2..ceb749d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,7 +39,7 @@ jobs:
 
     steps:
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup python
         uses: actions/setup-python@v6
@@ -58,7 +58,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup python
         uses: actions/setup-python@v6
@@ -103,7 +103,7 @@ jobs:
           python: "3.8"
     steps:
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup python
         uses: actions/setup-python@v6
@@ -158,7 +158,7 @@ jobs:
 
     steps:
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup python
         uses: actions/setup-python@v6
@@ -192,7 +192,7 @@ jobs:
 
     steps:
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup python
         uses: actions/setup-python@v6
@@ -243,7 +243,7 @@ jobs:
 
     steps:
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup python
         uses: actions/setup-python@v6