diff --git a/package.json b/package.json
index 99b36e8..4472c3a 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
   "devDependencies": {
     "@istanbuljs/nyc-config-typescript": "0.1.3",
     "@types/bunyan": "1.8.6",
-    "@types/chai": "4.2.1",
+    "@types/chai": "4.2.2",
     "@types/deep-diff": "1.0.0",
     "@types/js-yaml": "3.12.1",
     "@types/lodash": "4.14.138",
diff --git a/yarn.lock b/yarn.lock
index 45b1a99..42d2a08 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -154,10 +154,10 @@
   dependencies:
     "@types/node" "*"
 
-"@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/chai@4.2.2":
+  version "4.2.2"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.2.tgz#6b825013863d04868c15624ec8b7fdced88a47c6"
+  integrity sha512-8V2aCcPM3WLuJvJpF6N60uUvdZb7NHjpjQlLk1QmZbTP4XZET/FX0c3TJ3K7qt4L98FS1Pifa8BVofTVuJFWVA==
 
 "@types/deep-diff@1.0.0":
   version "1.0.0"