diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index c50469e..034ec7d 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -13,6 +13,8 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v4
       - uses: cerfcast/setup-action@886f0ab373105625f5af268677bc715050fcc105
+        with:
+          tree-sitter-ref: 8d737aa238084f9a51f1e97c195a362419beee8d
       # Because our tree-sitter code is in a subdirectory,
       # and working-directory does not apply to uses, we
       # are forced to specify calls to the CI ourselves.