diff --git a/package.json b/package.json
index ccb0e2e..b60519d 100644
--- a/package.json
+++ b/package.json
@@ -23,13 +23,13 @@
   "devDependencies": {
     "@commitlint/cli": "7.5.2",
     "@commitlint/config-conventional": "7.5.0",
-    "@types/chance": "1.0.1",
+    "@types/chance": "1.0.4",
     "@types/jest": "23.3.9",
     "@types/lodash.get": "4.4.6",
     "@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..863f698 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -165,10 +165,10 @@
   dependencies:
     any-observable "^0.3.0"
 
-"@types/chance@1.0.1":
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/@types/chance/-/chance-1.0.1.tgz#c10703020369602c40dd9428cc6e1437027116df"
-  integrity sha512-jtV6Bv/j+xk4gcXeLlESwNc/m/I/dIZA0xrt29g0uKcjyPob8iisj/5z0ARE+Ldfx4MxjNFNECG0z++J7zJgqg==
+"@types/chance@1.0.4":
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/@types/chance/-/chance-1.0.4.tgz#d262b7f04cf49b0d298fb162dd5db72a810c739d"
+  integrity sha512-Fwkv18sHVKsJBVEB6u7uDu5gDKbEYWz3ZB2vV3XfoD/C9eYABRZuHVx+4cuuYE2Th7IGMpaRpyJxDnTSeNleag==
 
 "@types/jest@23.3.9":
   version "23.3.9"
@@ -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"