diff --git a/package.json b/package.json
index 17007b768e..a2e22b37dd 100644
--- a/package.json
+++ b/package.json
@@ -102,7 +102,7 @@
     "@babel/preset-typescript": "7.3.3",
     "@babel/register": "^7.5.5",
     "@istanbuljs/nyc-config-typescript": "^0.1.3",
-    "@types/chai": "^4.2.0",
+    "@types/chai": "^4.2.1",
     "@types/chai-as-promised": "^7.1.2",
     "@types/cross-spawn": "^6.0.0",
     "@types/debug": "^4.1.5",
diff --git a/yarn.lock b/yarn.lock
index 9596f8c6e5..3947042e06 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -866,10 +866,10 @@
   dependencies:
     "@types/chai" "*"
 
-"@types/chai@*", "@types/chai@^4.2.0":
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.0.tgz#2478260021408dec32c123a7cad3414beb811a07"
-  integrity sha512-zw8UvoBEImn392tLjxoavuonblX/4Yb9ha4KBU10FirCfwgzhKO0dvyJSF9ByxV1xK1r2AgnAi/tvQaLgxQqxA==
+"@types/chai@*", "@types/chai@^4.2.1":
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.1.tgz#de162553aceca778d989929d821c5d4942921ebc"
+  integrity sha512-LDKlQW/V8bQr5p9aoHye9p7x9faxq0GVeWAkn/Zgyyn848LIAzuR1sHQjGmUBFUpINuGWDG2NTM/ofA2aLMIew==
 
 "@types/clean-css@*":
   version "4.2.0"