diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index baa1def..2417cf7 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -11,7 +11,7 @@ jobs:
       - uses: actions/setup-node@v4
       - uses: tree-sitter/setup-action@v2
         with:
-          tree-sitter-ref: "main"
+          tree-sitter-ref: "master"
       # 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.