diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 57c9c05be..435118e37 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -99,7 +99,7 @@ jobs:
       cache-version: v1
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/cache@v2
+      - uses: actions/cache@v2.1.4
         with:
           path: ${{ env.package-dir }}
           key: ${{ runner.os }}-cygwin-${{ env.cache-version }}