diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 272a574..99244e4 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,7 +10,7 @@ jobs:
     steps:
       - uses: actions/checkout@v1
       - name: Set up Python
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v2.1.2
         with:
           python-version: '3.x'
       - name: set PY
@@ -31,7 +31,7 @@ jobs:
     steps:
       - uses: actions/checkout@v1
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v2.1.2
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install Poetry