diff --git a/package.json b/package.json
index 7ad71fab85..7fac9c1dfb 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
     "ethereumjs-util": "^5.1.2",
     "execr": "^1.0.1",
     "exorcist": "^0.4.0",
-    "fast-async": "^6.1.2",
+    "fast-async": "6.3.1",
     "fast-levenshtein": "^2.0.6",
     "javascript-serialize": "^1.6.1",
     "jquery": "^3.3.1",