diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6c483da4c..54ee3084b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@ jobs:
         with:
           persist-credentials: false
 
-      - uses: oven-sh/setup-bun@v2
+      - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
 
       - name: Fetch comparison base
         env:
@@ -233,7 +233,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1
         with:
           persist-credentials: false
-      - uses: oven-sh/setup-bun@v2
+      - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
       - name: Require successful checks for the selected scope
         env:
           CI_NEEDS: ${{ toJSON(needs) }}