diff --git a/.github/workflows/bun-ci.yml b/.github/workflows/bun-ci.yml
index d3e4dcb7e..34fc3f3a6 100644
--- a/.github/workflows/bun-ci.yml
+++ b/.github/workflows/bun-ci.yml
@@ -30,7 +30,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Install Bun
         uses: oven-sh/setup-bun@735343b667d3e6f658f44d0eca948eb6282f2b76
@@ -38,7 +38,7 @@ jobs:
           bun-version: 1.2.18
 
       - name: Cache Bun modules
-        uses: actions/cache@v4
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: ~/.bun/install/cache
           key: ${{ runner.os }}-bun-1.2.18-${{ hashFiles('apps/web/bun.lock') }}