diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5abfb74..1a09756 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -77,7 +77,7 @@ jobs:
             experimental-features = nix-command flakes
 
       - name: Cache Nix store
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             /nix/store
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9bb8b9e..509d61d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -31,7 +31,7 @@ jobs:
             experimental-features = nix-command flakes
 
       - name: Cache Nix store
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             /nix/store