diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5c75f3d..12a8733 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -117,7 +117,7 @@ jobs:
 
       - name: Check whether the Guix cache needs updating
         id: check_cache
-        uses: actions/cache/restore@v3.3.2
+        uses: actions/cache/restore@v4.0.0
         with:
           path: ${{ env.guix_cached_paths }}
           key: ${{ steps.cache_name.outputs.ok }}
@@ -134,7 +134,7 @@ jobs:
       - name: Restore the Guix store from cache
         id: restore_cache
         if: ${{ !steps.check_cache.outputs.cache-hit }}
-        uses: actions/cache/restore@v3.3.2
+        uses: actions/cache/restore@v4.0.0
         with:
           path: ${{ env.guix_cached_paths }}
           key: ${{ steps.cache_name.outputs.ok }}
@@ -254,7 +254,7 @@ jobs:
           always() && !cancelled()
           && !steps.check_cache.outputs.cache-hit
           && (steps.guix_shutdown.outcome == 'success')
-        uses: actions/cache/save@v3.3.2
+        uses: actions/cache/save@v4.0.0
         with:
           path: ${{ env.guix_cached_paths }}
           key: ${{ steps.saved_cache_name.outputs.name }}
@@ -279,7 +279,7 @@ jobs:
 
       - name: Restore the Guix store from cache
         id: restore_cache
-        uses: actions/cache/restore@v3.3.2
+        uses: actions/cache/restore@v4.0.0
         with:
           path: ${{ env.guix_cached_paths }}
           key: ${{ needs.build.outputs.cache_name }}