diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 9734978..c2da592 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -31,7 +31,7 @@ jobs:
         uses: actions/checkout@v7
         with:
           repository: alliedmodders/metamod-source
-          ref: master
+          ref: 7ec0f16948ab3a0910a98b4ac10e1c0e360d5339
           path: mmsource-2.0
           submodules: recursive