diff --git a/package.json b/package.json
index ff844fb..616f2ba 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "gulp-exec": "^2.1.2",
     "gulp-print": "^2.0.1",
     "gulp-sourcemaps": "^1.6.0",
-    "gulp-spawn-mocha": "^3.1.0",
+    "gulp-spawn-mocha": "^4.0.0",
     "gulp-task-graph-visualizer": "^1.0.0",
     "gulp-tsfmt": "^1.0.2",
     "gulp-tslint": "^7.0.1",