diff --git a/package.json b/package.json
index 5cbbac47de..46226fb2da 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,6 @@
 	"name": "DefinitelyTyped",
 	"version": "0.0.0",
 	"scripts": {
-		"test": "node ./_infrastructure/tests/runner.js --tsc-version 0.9.7-59a846"
+		"test": "node ./_infrastructure/tests/runner.js --tsc-version 0.9.7-66c2df"
 	}
 }