diff --git a/package.json b/package.json
index 3c88005..573d6dc 100644
--- a/package.json
+++ b/package.json
@@ -66,13 +66,13 @@
     "@semantic-release/changelog": "3.0.0",
     "@semantic-release/git": "7.0.1",
     "@semantic-release/github": "5.0.2",
-    "@types/chai": "4.1.4",
+    "@types/chai": "4.2.5",
     "@types/faker": "4.1.2",
     "@types/lodash": "4.14.116",
     "@types/mocha": "5.2.5",
     "@types/node": "10.5.6",
     "@types/sinon": "5.0.1",
-    "chai": "4.1.2",
+    "chai": "4.2.0",
     "coveralls": "3.0.2",
     "faker": "4.1.0",
     "mocha": "5.2.0",
diff --git a/yarn.lock b/yarn.lock
index 12739e7..aedc286 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -211,9 +211,9 @@
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/@sinonjs/samsam/-/samsam-2.0.0.tgz#9163742ac35c12d3602dece74317643b35db6a80"
 
-"@types/chai@4.1.4":
-  version "4.1.4"
-  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.1.4.tgz#5ca073b330d90b4066d6ce18f60d57f2084ce8ca"
+"@types/chai@4.2.5":
+  version "4.2.5"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.5.tgz#f8da153ebbe30babb0adc9a528b9ad32be3175a2"
 
 "@types/faker@4.1.2":
   version "4.1.2"
@@ -420,7 +420,7 @@ assert-plus@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-0.2.0.tgz#d74e1b87e7affc0db8aadb7021f3fe48101ab234"
 
-assertion-error@^1.0.1:
+assertion-error@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/assertion-error/-/assertion-error-1.1.0.tgz#e60b6b0e8f301bd97e5375215bda406c85118c0b"
 
@@ -709,16 +709,16 @@ center-align@^0.1.1:
     align-text "^0.1.3"
     lazy-cache "^1.0.3"
 
-chai@4.1.2:
-  version "4.1.2"
-  resolved "https://registry.yarnpkg.com/chai/-/chai-4.1.2.tgz#0f64584ba642f0f2ace2806279f4f06ca23ad73c"
+chai@4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/chai/-/chai-4.2.0.tgz#760aa72cf20e3795e84b12877ce0e83737aa29e5"
   dependencies:
-    assertion-error "^1.0.1"
-    check-error "^1.0.1"
-    deep-eql "^3.0.0"
+    assertion-error "^1.1.0"
+    check-error "^1.0.2"
+    deep-eql "^3.0.1"
     get-func-name "^2.0.0"
-    pathval "^1.0.0"
-    type-detect "^4.0.0"
+    pathval "^1.1.0"
+    type-detect "^4.0.5"
 
 chalk@^1.1.3:
   version "1.1.3"
@@ -738,7 +738,7 @@ chalk@^2.0.0, chalk@^2.0.1, chalk@^2.3.0, chalk@^2.3.2:
     escape-string-regexp "^1.0.5"
     supports-color "^5.3.0"
 
-check-error@^1.0.1:
+check-error@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/check-error/-/check-error-1.0.2.tgz#574d312edd88bb5dd8912e9286dd6c0aed4aac82"
 
@@ -1111,7 +1111,7 @@ decode-uri-component@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
 
-deep-eql@^3.0.0:
+deep-eql@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/deep-eql/-/deep-eql-3.0.1.tgz#dfc9404400ad1c8fe023e7da1df1c147c4b444df"
   dependencies:
@@ -3420,7 +3420,7 @@ path-type@^3.0.0:
   dependencies:
     pify "^3.0.0"
 
-pathval@^1.0.0:
+pathval@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/pathval/-/pathval-1.1.0.tgz#b942e6d4bde653005ef6b71361def8727d0645e0"
 
@@ -4499,7 +4499,7 @@ tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   version "0.14.5"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
 
-type-detect@^4.0.0, type-detect@^4.0.8:
+type-detect@^4.0.0, type-detect@^4.0.5, type-detect@^4.0.8:
   version "4.0.8"
   resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-4.0.8.tgz#7646fb5f18871cfbb7749e69bd39a6388eb7450c"