diff --git a/package-lock.json b/package-lock.json
index 3426ce2..89f0b89 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,6 +4,36 @@
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       "resolved": "https://registry.npmjs.org/tty-browserify/-/tty-browserify-0.0.0.tgz",
@@ -12631,6 +12303,12 @@
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       "dev": true
     },
+    "ua-parser-js": {
+      "version": "0.7.32",
+      "resolved": "https://registry.npmjs.org/ua-parser-js/-/ua-parser-js-0.7.32.tgz",
+      "integrity": "sha512-f9BESNVhzlhEFf2CHMSj40NWOjYPl1YKYbrvIr/hFTDEmLq7SRbWvm7FcdcpCYT95zrOhC7gZSxjdnnTpBcwVw==",
+      "dev": true
+    },
     "uglify-js": {
       "version": "3.1.7",
       "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.1.7.tgz",
@@ -12678,25 +12356,12 @@
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-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
-      "integrity": "sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og==",
-      "dev": true
-    },
     "unc-path-regex": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/unc-path-regex/-/unc-path-regex-0.1.2.tgz",
       "integrity": "sha1-5z3T17DXxe2G+6xrCufYxqadUPo=",
       "dev": true
     },
-    "underscore": {
-      "version": "1.7.0",
-      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.7.0.tgz",
-      "integrity": "sha1-a7rwh3UA02vjTsqlhODbn+8DUgk=",
-      "dev": true,
-      "optional": true
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       "resolved": "https://registry.npmjs.org/uniq/-/uniq-1.0.1.tgz",
@@ -12772,24 +12437,6 @@
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-    "useragent": {
-      "version": "2.2.1",
-      "resolved": "https://registry.npmjs.org/useragent/-/useragent-2.2.1.tgz",
-      "integrity": "sha1-z1k+9PLRdYdei7ZY6pLhik/QbY4=",
-      "dev": true,
-      "requires": {
-        "lru-cache": "2.2.4",
-        "tmp": "0.0.33"
-      },
-      "dependencies": {
-        "lru-cache": {
-          "version": "2.2.4",
-          "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-2.2.4.tgz",
-          "integrity": "sha1-bGWGGb7PFAMdDQtZSxYELOTcBj0=",
-          "dev": true
-        }
-      }
-    },
     "util": {
       "version": "0.10.3",
       "resolved": "https://registry.npmjs.org/util/-/util-0.10.3.tgz",
@@ -12831,13 +12478,6 @@
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       "dev": true
     },
-    "uws": {
-      "version": "9.14.0",
-      "resolved": "https://registry.npmjs.org/uws/-/uws-9.14.0.tgz",
-      "integrity": "sha512-HNMztPP5A1sKuVFmdZ6BPVpBQd5bUjNC8EFMFiICK+oho/OQsAJy5hnIx4btMHiOk8j04f/DbIlqnEZ9d72dqg==",
-      "dev": true,
-      "optional": true
-    },
     "validate-npm-package-license": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.1.tgz",
@@ -12883,7 +12523,7 @@
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       "resolved": "https://registry.npmjs.org/void-elements/-/void-elements-2.0.1.tgz",
-      "integrity": "sha1-wGavtYK7HLQSjWDqkjkulNXp2+w=",
+      "integrity": "sha512-qZKX4RnBzH2ugr8Lxa7x+0V6XD9Sb/ouARtiasEQCHB1EVU4NXtmHsDDrx1dO4ne5fc3J6EW05BP1Dl0z0iung==",
       "dev": true
     },
     "vue": {
@@ -13373,13 +13013,6 @@
         "source-map": "0.6.1"
       }
     },
-    "when": {
-      "version": "3.7.8",
-      "resolved": "https://registry.npmjs.org/when/-/when-3.7.8.tgz",
-      "integrity": "sha1-xxMLan6gRpPoQs3J56Hyqjmjn4I=",
-      "dev": true,
-      "optional": true
-    },
     "whet.extend": {
       "version": "0.9.9",
       "resolved": "https://registry.npmjs.org/whet.extend/-/whet.extend-0.9.9.tgz",
@@ -13448,15 +13081,10 @@
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     "ws": {
-      "version": "3.3.3",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-3.3.3.tgz",
-      "integrity": "sha512-nnWLa/NwZSt4KQJu51MYlCcSQ5g7INpOrOMt4XV8j4dqTXdmlUmSHQ8/oLC069ckre0fRsgfvsKwbTdtKLCDkA==",
-      "dev": true,
-      "requires": {
-        "async-limiter": "1.0.0",
-        "safe-buffer": "5.1.1",
-        "ultron": "1.1.1"
-      }
+      "version": "8.2.3",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.2.3.tgz",
+      "integrity": "sha512-wBuoj1BDpC6ZQ1B7DWQBYVLphPWkm8i9Y0/3YdHjHKHiohOJ1ws+3OccDWtH+PoC9DZD5WOTrJvNbWvjS6JWaA==",
+      "dev": true
     },
     "xml-char-classes": {
       "version": "1.0.0",
@@ -13464,12 +13092,6 @@
       "integrity": "sha1-ZGV4SKIP/F31g6Qq2KJ3tFErvE0=",
       "dev": true
     },
-    "xmlhttprequest-ssl": {
-      "version": "1.5.5",
-      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz",
-      "integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4=",
-      "dev": true
-    },
     "xregexp": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/xregexp/-/xregexp-2.0.0.tgz",
@@ -13539,12 +13161,6 @@
       "requires": {
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       }
-    },
-    "yeast": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
-      "integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk=",
-      "dev": true
     }
   }
 }
diff --git a/package.json b/package.json
index ea0c68a..2e93bf7 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
     "html-webpack-plugin": "^2.30.1",
     "http-proxy-middleware": "^0.17.3",
     "inject-loader": "^3.0.0",
-    "karma": "^2.0.2",
+    "karma": "^6.4.1",
     "karma-coverage": "^1.1.1",
     "karma-mocha": "^1.3.0",
     "karma-phantomjs-launcher": "^1.0.2",