diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 48ac47341..01c6f32da 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -45,7 +45,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Restore cached pixi lockfile
-        uses: actions/cache/restore@v4
+        uses: actions/cache/restore@v5
         id: restore-pixi-lock
         with:
           enableCrossOsArchive: true
@@ -60,7 +60,7 @@ jobs:
       # https://github.com/actions/cache/blob/main/tips-and-workarounds.md#update-a-cache
       - name: Restore cached hypothesis directory
         id: restore-hypothesis-cache
-        uses: actions/cache/restore@v4
+        uses: actions/cache/restore@v5
         with:
           path: .hypothesis/
           key: cache-hypothesis-${{ runner.os }}-${{ github.run_id }}
@@ -74,7 +74,7 @@ jobs:
       - name: Save cached hypothesis directory
         id: save-hypothesis-cache
         if: always() && steps.unit-test.outcome != 'skipped'
-        uses: actions/cache/save@v4
+        uses: actions/cache/save@v5
         with:
           path: .hypothesis/
           key: cache-hypothesis-${{ runner.os }}-${{ github.run_id }}
@@ -109,7 +109,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Restore cached pixi lockfile
-        uses: actions/cache/restore@v4
+        uses: actions/cache/restore@v5
         id: restore-pixi-lock
         with:
           enableCrossOsArchive: true
@@ -158,7 +158,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v5
       - name: Restore cached pixi lockfile
-        uses: actions/cache/restore@v4
+        uses: actions/cache/restore@v5
         id: restore-pixi-lock
         with:
           path: |