diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 073f2284..97ed5ed9 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -63,7 +63,7 @@ jobs:
       - name: Setup nightly Zig
         uses: mlugg/setup-zig@v1
         with:
-          version: master
+          version: 0.14.0-dev.121+ab4c461b7
       - name: Build test ffi lib
         run: zig build-lib -dynamic tests/utils/foreign.zig && mv libforeign.* tests/utils/
 
@@ -103,7 +103,7 @@ jobs:
       - name: Setup nightly Zig
         uses: mlugg/setup-zig@v1
         with:
-          version: master
+          version: 0.14.0-dev.121+ab4c461b7
       - name: Build for wasm
         run: zig build -Dtarget=wasm32-freestanding -freference-trace -Doptimize=ReleaseSmall
       - name: Cleanup
@@ -115,5 +115,5 @@ jobs:
       - name: Setup nightly Zig
         uses: mlugg/setup-zig@v1
         with:
-          version: master
+          version: 0.14.0-dev.121+ab4c461b7
       - run: zig fmt --check src/*.zig src/**/*.zig