diff --git a/package-lock.json b/package-lock.json
index 66a5f00..37f4349 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -113,9 +113,9 @@
       "dev": true
     },
     "assertion-error": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-1.0.2.tgz",
-      "integrity": "sha1-E8pRXYYgbaC6xm6DTdOX2HWBCUw=",
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-1.1.0.tgz",
+      "integrity": "sha512-jgsaNduz+ndvGyFt3uSuWqvy4lCnIJiovtouQN5JZHOKCS2QuhEdbcQHFhVksz2N2U9hXJo8odG7ETyWlEeuDw==",
       "dev": true
     },
     "assign-symbols": {
@@ -430,17 +430,17 @@
       }
     },
     "chai": {
-      "version": "4.1.2",
-      "resolved": "https://registry.npmjs.org/chai/-/chai-4.1.2.tgz",
-      "integrity": "sha1-D2RYS6ZC8PKs4oBiefTwbKI61zw=",
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.2.0.tgz",
+      "integrity": "sha512-XQU3bhBukrOsQCuwZndwGcCVQHyZi53fQ6Ys1Fym7E4olpIqqZZhhoFJoaKVvV17lWQoXYwgWN2nF5crA8J2jw==",
       "dev": true,
       "requires": {
-        "assertion-error": "1.0.2",
-        "check-error": "1.0.2",
-        "deep-eql": "3.0.1",
-        "get-func-name": "2.0.0",
-        "pathval": "1.1.0",
-        "type-detect": "4.0.5"
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.2",
+        "deep-eql": "^3.0.1",
+        "get-func-name": "^2.0.0",
+        "pathval": "^1.1.0",
+        "type-detect": "^4.0.5"
       }
     },
     "chalk": {
@@ -678,7 +678,7 @@
       "integrity": "sha512-+QeIQyN5ZuO+3Uk5DYh6/1eKO0m0YmJFGNmFHGACpf1ClL1nmlV/p4gNgbl2pJGxgXb4faqo6UE+M5ACEMyVcw==",
       "dev": true,
       "requires": {
-        "type-detect": "4.0.5"
+        "type-detect": "^4.0.0"
       }
     },
     "default-require-extensions": {
@@ -3029,9 +3029,9 @@
       "optional": true
     },
     "type-detect": {
-      "version": "4.0.5",
-      "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.5.tgz",
-      "integrity": "sha512-N9IvkQslUGYGC24RkJk1ba99foK6TkwC2FHAEBlQFBP0RxQZS8ZpJuAZcwiY/w9ZJHFQb1aOXBI60OdxhTrwEQ==",
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
+      "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
       "dev": true
     },
     "uglify-js": {
diff --git a/yarn.lock b/yarn.lock
index 7989806..5dfdc49 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -77,9 +77,9 @@ assert-plus@1.0.0, assert-plus@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-1.0.0.tgz#f12e0f3c5d77b0b1cdd9146942e4e96c1e4dd525"
 
-assertion-error@^1.0.1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/assertion-error/-/assertion-error-1.0.2.tgz#13ca515d86206da0bac66e834dd397d87581094c"
+assertion-error@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/assertion-error/-/assertion-error-1.1.0.tgz#e60b6b0e8f301bd97e5375215bda406c85118c0b"
 
 async@1.x, async@^1.4.0:
   version "1.5.2"
@@ -227,15 +227,15 @@ center-align@^0.1.1:
     lazy-cache "^1.0.3"
 
 chai@^4.1.0:
-  version "4.1.2"
-  resolved "https://registry.yarnpkg.com/chai/-/chai-4.1.2.tgz#0f64584ba642f0f2ace2806279f4f06ca23ad73c"
+  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"
@@ -255,7 +255,7 @@ chalk@^2.0.1:
     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"
 
@@ -351,7 +351,7 @@ decamelize@^1.0.0, decamelize@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
 
-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:
@@ -1012,7 +1012,7 @@ path-parse@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.5.tgz#3c1adf871ea9cd6c9431b6ea2bd74a0ff055c4c1"
 
-pathval@^1.0.0:
+pathval@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/pathval/-/pathval-1.1.0.tgz#b942e6d4bde653005ef6b71361def8727d0645e0"
 
@@ -1246,9 +1246,9 @@ 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:
-  version "4.0.5"
-  resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-4.0.5.tgz#d70e5bc81db6de2a381bcaca0c6e0cbdc7635de2"
+type-detect@^4.0.0, type-detect@^4.0.5:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-4.0.8.tgz#7646fb5f18871cfbb7749e69bd39a6388eb7450c"
 
 uglify-js@^2.6:
   version "2.8.29"