diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 59628f3..20c00ef 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -20,7 +20,7 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: 3.9
-      - uses: actions/cache@v2
+      - uses: actions/cache@v2.1.4
         env:
           BASE_CACHE_KEY: "${{ github.job }}-${{ runner.os }}-\
             py${{ steps.setup-python.outputs.python-version }}-"
@@ -53,7 +53,7 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: ${{ matrix.python-version }}
-      - uses: actions/cache@v2
+      - uses: actions/cache@v2.1.4
         env:
           BASE_CACHE_KEY: "${{ github.job }}-${{ runner.os }}-\
             py${{ steps.setup-python.outputs.python-version }}-"
@@ -89,7 +89,7 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: ${{ matrix.python-version }}
-      - uses: actions/cache@v2
+      - uses: actions/cache@v2.1.4
         env:
           BASE_CACHE_KEY: "${{ github.job }}-${{ runner.os }}-\
             py${{ steps.setup-python.outputs.python-version }}-"