diff --git a/yarn.lock b/yarn.lock
index 64baaff..d8c158c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -39,9 +39,9 @@
     strip-json-comments "^3.1.1"
 
 "@types/chai@*", "@types/chai@^4.2.11":
-  version "4.2.15"
-  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.15.tgz#b7a6d263c2cecf44b6de9a051cf496249b154553"
-  integrity sha512-rYff6FI+ZTKAPkJUoyz7Udq3GaoDZnxYDEvdEdFZASiA7PoErltHezDishqQiSDWrGxvxmplH304jyzQmjp0AQ==
+  version "4.2.18"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.18.tgz#0c8e298dbff8205e2266606c1ea5fbdba29b46e4"
+  integrity sha512-rS27+EkB/RE1Iz3u0XtVL5q36MGDWbgYe7zWiodyKNUnthxY0rukK5V36eiUCtCisB7NN8zKYH6DO2M37qxFEQ==
 
 "@types/clean-stack@^2.1.1":
   version "2.1.1"