diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index d1ccd88..1531fc9 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -3,9 +3,12 @@ name: CI
 on:
   push:
     branches:
-    - master
+      - master
   pull_request:
 
+permissions:
+  contents: read
+
 jobs:
   test:
     name: Test
@@ -13,27 +16,29 @@ jobs:
     strategy:
       matrix:
         vim:
-        - v9.0.0000
-        - v8.2.0000
-        - v8.1.0000
-        - v8.0.0000
-        - v7.4
-        - v7.3
+          - v9.1.0000
+          - v9.0.0000
+          - v8.2.0000
+          - v8.1.0000
+          - v8.0.0000
+          - v7.4
+          - v7.3
+      fail-fast: false
     steps:
-    - name: Checkout code
-      uses: actions/checkout@v3
-    - name: Checkout vim-themis
-      uses: actions/checkout@v3
-      with:
-        repository: thinca/vim-themis
-        path: vim-themis
-        ref: v1.6.0
-    - name: Setup Vim
-      uses: rhysd/action-setup-vim@v1
-      id: vim
-      with:
-        version: ${{ matrix.vim }}
-    - name: Test
-      env:
-        THEMIS_VIM: ${{ steps.vim.outputs.executable }}
-      run: ./vim-themis/bin/themis --reporter spec
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Checkout vim-themis
+        uses: actions/checkout@v4
+        with:
+          repository: thinca/vim-themis
+          path: vim-themis
+          ref: v1.6.0
+      - name: Setup Vim
+        uses: rhysd/action-setup-vim@v1
+        id: vim
+        with:
+          version: ${{ matrix.vim }}
+      - name: Test
+        env:
+          THEMIS_VIM: ${{ steps.vim.outputs.executable }}
+        run: ./vim-themis/bin/themis --reporter spec