diff --git a/.github/workflows/Benchmark.yml b/.github/workflows/Benchmark.yml
index 4e7a1d8..f5b1bdf 100644
--- a/.github/workflows/Benchmark.yml
+++ b/.github/workflows/Benchmark.yml
@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: julia-actions/setup-julia@latest
       - name: Cache artifacts
-        uses: actions/cache@v1
+        uses: actions/cache@v4
         env:
           cache-name: cache-artifacts
         with:
diff --git a/.github/workflows/UnitTest.yml b/.github/workflows/UnitTest.yml
index 2fa6702..f418cfc 100644
--- a/.github/workflows/UnitTest.yml
+++ b/.github/workflows/UnitTest.yml
@@ -31,7 +31,7 @@ jobs:
       - run: julia --project -e 'using Pkg; Pkg.develop([PackageSpec(path="CheckedArithmeticCore")])'
 
       - name: Cache artifacts
-        uses: actions/cache@v1
+        uses: actions/cache@v4
         env:
           cache-name: cache-artifacts
         with: