diff --git a/package-lock.json b/package-lock.json
index f23be3c..7524475 100644
--- a/package-lock.json
+++ b/package-lock.json
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       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/v8-compile-cache/-/v8-compile-cache-2.0.0.tgz",
@@ -9756,18 +8386,6 @@
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       "dev": true
     },
-    "verror": {
-      "version": "1.10.0",
-      "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
-      "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "assert-plus": "1.0.0",
-        "core-util-is": "1.0.2",
-        "extsprintf": "1.3.0"
-      }
-    },
     "vlq": {
       "version": "0.2.3",
       "resolved": "https://registry.npmjs.org/vlq/-/vlq-0.2.3.tgz",
@@ -9795,16 +8413,9 @@
       "integrity": "sha1-8LDc+RW8X/FSivrbLA4XtTLaL+g=",
       "dev": true,
       "requires": {
-        "defaults": "1.0.3"
+        "defaults": "^1.0.3"
       }
     },
-    "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",
@@ -9817,16 +8428,9 @@
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       "dev": true,
       "requires": {
-        "isexe": "2.0.0"
+        "isexe": "^2.0.0"
       }
     },
-    "with-callback": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/with-callback/-/with-callback-1.0.2.tgz",
-      "integrity": "sha1-oJYpuakgAo1yFAT7Q1vc/1yRvCE=",
-      "dev": true,
-      "optional": true
-    },
     "wordwrap": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
@@ -9845,7 +8449,7 @@
       "integrity": "sha1-X8A4KOJkzqP+kUVUdvejxWbLB1c=",
       "dev": true,
       "requires": {
-        "mkdirp": "0.5.1"
+        "mkdirp": "^0.5.1"
       }
     },
     "ws": {
@@ -9854,7 +8458,7 @@
       "integrity": "sha512-jaHFD6PFv6UgoIVda6qZllptQsMlDEJkTQcybzzXDYM1XO9Y8em691FGMPmM46WGyLU4z9KMgQN+qrux/nhlHA==",
       "dev": true,
       "requires": {
-        "async-limiter": "1.0.0"
+        "async-limiter": "~1.0.0"
       }
     },
     "xmlhttprequest-ssl": {
@@ -9863,26 +8467,12 @@
       "integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4=",
       "dev": true
     },
-    "xregexp": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/xregexp/-/xregexp-2.0.0.tgz",
-      "integrity": "sha1-UqY+VsoLhKfzpfPWGHLxJq16WUM=",
-      "dev": true,
-      "optional": true
-    },
     "xtend": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
       "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
       "dev": true
     },
-    "yallist": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
-      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
-      "dev": true,
-      "optional": true
-    },
     "yeast": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
diff --git a/package.json b/package.json
index f2ca4b7..ac4ebdc 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
   "devDependencies": {
     "chai": "^4.1.2",
     "eslint": "^5.0.1",
-    "karma": "^2.0.4",
+    "karma": "^3.0.0",
     "karma-chai": "^0.1.0",
     "karma-chrome-launcher": "^2.2.0",
     "karma-mocha": "^1.3.0",