diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 22b7662..3c61c6b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -48,7 +48,7 @@ jobs:
       - name: Freeze
         run: cabal freeze --project-file=cabal.release.project
       - name: Cache
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: ${{ steps.setup-haskell.outputs.cabal-store }}
           key: ${{ runner.os }}-ghc-${{ matrix.ghc }}-${{ hashFiles('**/plan.json') }}
@@ -115,7 +115,7 @@ jobs:
       - name: Freeze
         run: cabal freeze --project-file=cabal.static.project
 
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: ${{ steps.setup-haskell.outputs.cabal-store }}
           key: ${{ runner.os }}-ghc-${{ steps.setup.outputs.ghc-version }}-${{ hashFiles('**/plan.json') }}