diff --git a/package.json b/package.json
index ccb0e2e..7a57ac8 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "@types/lodash.merge": "4.6.4",
     "@types/loglevel": "1.5.3",
     "@types/node": "10.12.7",
-    "chance": "1.0.16",
+    "chance": "1.0.18",
     "coveralls": "3.0.2",
     "husky": "1.1.4",
     "jest": "23.6.0",
diff --git a/yarn.lock b/yarn.lock
index 6bd421c..712b76e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -805,10 +805,10 @@ chalk@^2.0.0, chalk@^2.0.1, chalk@^2.3.0, chalk@^2.3.1:
     escape-string-regexp "^1.0.5"
     supports-color "^5.3.0"
 
-chance@1.0.16:
-  version "1.0.16"
-  resolved "https://registry.yarnpkg.com/chance/-/chance-1.0.16.tgz#bd61912716b0010c3dca8e3948a960efcaa7bb1b"
-  integrity sha512-2bgDHH5bVfAXH05SPtjqrsASzZ7h90yCuYT2z4mkYpxxYvJXiIydBFzVieVHZx7wLH1Ag2Azaaej2/zA1XUrNQ==
+chance@1.0.18:
+  version "1.0.18"
+  resolved "https://registry.yarnpkg.com/chance/-/chance-1.0.18.tgz#79788fe6fca4c338bf404321c347eecc80f969ee"
+  integrity sha512-g9YLQVHVZS/3F+zIicfB58vjcxopvYQRp7xHzvyDFDhXH1aRZI/JhwSAO0X5qYiQluoGnaNAU6wByD2KTxJN1A==
 
 chownr@^1.1.1:
   version "1.1.1"