diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8bf3d7ea6..c38ee98e8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,9 +14,7 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - ubuntu-latest
           - macos-latest
-          - windows-latest
 
     env:
       DEVSPACE_ALLOWED_ROOTS: ${{ github.workspace }}
@@ -25,10 +23,10 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262  # v4
 
       - name: Setup Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020  # v4
         with:
           node-version: 22
           cache: npm
@@ -40,6 +38,7 @@ jobs:
         run: npm run typecheck
 
       - name: Test
+        shell: bash
         run: npm test
 
       - name: Build