diff --git a/.github/workflows/haskell.yml b/.github/workflows/haskell.yml
index 62d5213..f8d7051 100644
--- a/.github/workflows/haskell.yml
+++ b/.github/workflows/haskell.yml
@@ -38,7 +38,7 @@ jobs:
       run: |
         cabal freeze
 
-    - uses: actions/cache@v4
+    - uses: actions/cache@v5
       name: Cache ~/.cabal/store
       with:
         path: ${{ steps.setup-haskell-cabal.outputs.cabal-store }}
diff --git a/.github/workflows/purescript.yml b/.github/workflows/purescript.yml
index a4401ad..9af5eba 100644
--- a/.github/workflows/purescript.yml
+++ b/.github/workflows/purescript.yml
@@ -20,7 +20,7 @@ jobs:
         uses: purescript-contrib/setup-purescript@main
 
       - name: Cache PureScript dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           key: ${{ runner.os }}-spago-${{ hashFiles('**/*.dhall') }}
           path: |