diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a76d8a3..ed19a96 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -54,7 +54,7 @@ jobs:
           elixir-version: '1.19.5'
 
       - name: cache mix deps and build
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             server/deps
@@ -65,7 +65,7 @@ jobs:
             ${{ runner.os }}-mix-
 
       - name: cache hex registry
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.hex
           key: ${{ runner.os }}-hex-${{ hashFiles('server/mix.lock') }}
@@ -108,7 +108,7 @@ jobs:
           bun-version: latest
 
       - name: cache bun install
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.bun/install/cache
           key: ${{ runner.os }}-bun-${{ hashFiles('landing/bun.lock') }}