diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9a18c93..ffce5ce 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -36,9 +36,9 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Checkout themis.vim
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: thinca/vim-themis
           path: vim-themis