diff --git a/package-lock.json b/package-lock.json
index 813642b..45e77aa 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -54,7 +54,7 @@
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@@ -115,6 +115,30 @@
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+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
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@@ -2357,6 +2329,33 @@
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-      "resolved": "https://registry.npmjs.org/ws/-/ws-1.1.2.tgz",
-      "integrity": "sha1-iiRPoFJAHgjJiGz0SoUYnh/UBn8=",
+      "version": "8.2.3",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.2.3.tgz",
+      "integrity": "sha512-wBuoj1BDpC6ZQ1B7DWQBYVLphPWkm8i9Y0/3YdHjHKHiohOJ1ws+3OccDWtH+PoC9DZD5WOTrJvNbWvjS6JWaA==",
       "dev": true,
-      "requires": {
-        "options": ">=0.0.5",
-        "ultron": "1.0.x"
-      }
-    },
-    "wtf-8": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/wtf-8/-/wtf-8-1.0.0.tgz",
-      "integrity": "sha1-OS2LotDxw00e4tYw8V0O+2jhBIo=",
-      "dev": true
+      "requires": {}
     },
     "xml-char-classes": {
       "version": "1.0.0",
@@ -28727,12 +29633,6 @@
       "resolved": "https://registry.npmjs.org/xmldom/-/xmldom-0.1.19.tgz",
       "integrity": "sha1-Yx/Ad3bv2EEYvyUXGzftTQdaCrw="
     },
-    "xmlhttprequest-ssl": {
-      "version": "1.5.3",
-      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.3.tgz",
-      "integrity": "sha1-GFqIjATspGw+QHDZn3tJ3jUomS0=",
-      "dev": true
-    },
     "xtend": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
@@ -28811,12 +29711,6 @@
         }
       }
     },
-    "yeast": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
-      "integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk=",
-      "dev": true
-    },
     "yn": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/yn/-/yn-2.0.0.tgz",
diff --git a/package.json b/package.json
index f02f15d..8a7bc96 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
     "codelyzer": "~3.2.0",
     "jasmine-core": "~2.6.2",
     "jasmine-spec-reporter": "~4.1.0",
-    "karma": "~1.7.0",
+    "karma": "~6.4.1",
     "karma-chrome-launcher": "~2.1.1",
     "karma-cli": "~1.0.1",
     "karma-coverage-istanbul-reporter": "^1.2.1",