diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c9dea3f1..0d0cf013 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -26,7 +26,7 @@ jobs:
           java-version: ${{ matrix.java }}
           architecture: ${{ matrix.architecture }}
           
-      - uses: actions/cache@v2
+      - uses: actions/cache@v2.1.4
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
diff --git a/.github/workflows/pitest.yml b/.github/workflows/pitest.yml
index ae348ed1..47fe7d9c 100644
--- a/.github/workflows/pitest.yml
+++ b/.github/workflows/pitest.yml
@@ -24,7 +24,7 @@ jobs:
           java-version: ${{ matrix.java }}
           architecture: ${{ matrix.architecture }}
           
-      - uses: actions/cache@v2
+      - uses: actions/cache@v2.1.4
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}