diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 24ccce1..eaa32be 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,9 +22,9 @@ jobs:
         - v7.4
     steps:
     - name: Checkout code
-      uses: actions/checkout@master
+      uses: actions/checkout@v2
     - name: Checkout vim-themis
-      uses: actions/checkout@master
+      uses: actions/checkout@v2
       with:
         repository: thinca/vim-themis
         path: vim-themis
diff --git a/.github/workflows/vint.yml b/.github/workflows/vint.yml
index d89adb1..27212d6 100644
--- a/.github/workflows/vint.yml
+++ b/.github/workflows/vint.yml
@@ -18,7 +18,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies