diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 543d514..d81ed1f 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -265,7 +265,7 @@ jobs:
           $CABAL v2-build $ARG_COMPILER $ARG_TESTS $ARG_BENCH --dry-run all
           cabal-plan
       - name: restore cache
-        uses: actions/cache/restore@v4
+        uses: actions/cache/restore@v5
         with:
           key: ${{ runner.os }}-${{ matrix.compiler }}-${{ github.sha }}
           path: ~/.cabal/store
@@ -296,7 +296,7 @@ jobs:
           $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks all
       - name: save cache
         if: always()
-        uses: actions/cache/save@v4
+        uses: actions/cache/save@v5
         with:
           key: ${{ runner.os }}-${{ matrix.compiler }}-${{ github.sha }}
           path: ~/.cabal/store
diff --git a/.github/workflows/stack.yml b/.github/workflows/stack.yml
index 685c47d..851cd9c 100644
--- a/.github/workflows/stack.yml
+++ b/.github/workflows/stack.yml
@@ -105,7 +105,7 @@ jobs:
         enable-stack: true
 
     - name: Restore cache dependencies
-      uses: actions/cache/restore@v4
+      uses: actions/cache/restore@v5
       id: cache
       env:
         key: ${{ runner.os }}-stack-${{ steps.setup.outputs.stack-version }}-ghc-${{ steps.setup.outputs.ghc-version }}
@@ -132,7 +132,7 @@ jobs:
         stack exec ${ARGS} -- fix-whitespace --check
 
     - name: Cache dependencies
-      uses: actions/cache/save@v4
+      uses: actions/cache/save@v5
       if:   always() && steps.cache.outputs.cache-hit != 'true'
       with:
         path: ${{ steps.setup.outputs.stack-root }}