diff --git a/.travis.yml b/.travis.yml
index 8ff71da41f..1c17ffab2b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,8 +12,7 @@ jobs:
 
     - stage: spec tests 👩🏽‍💻
       script: npm run test:specs
-      node_js: v4
-    - node_js: lts/*
+      node_js: lts/*
     - node_js: node
 
     - stage: lint ✨
diff --git a/package-lock.json b/package-lock.json
index 1a5974fb2f..924d43e9cd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,18 +25,15 @@
       }
     },
     "@markedjs/html-differ": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/@markedjs/html-differ/-/html-differ-2.0.1.tgz",
-      "integrity": "sha512-Sv1PMZ9RGt+MZqIk7p4wHiOWZo34p1s4x2AIIipmK4HeZK1Vn7Hlp+A7K73I3CQgLfvUu4ZyuU219LIal6sUrg==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@markedjs/html-differ/-/html-differ-3.0.0.tgz",
+      "integrity": "sha512-ubvgDumynqq6PnWyEPeBqLmEcrXR5w48AlQK8uj2M9IY04GNZhQGBL7sX2UI2IW8EKX5nRimFvv2iEKyPTSc4g==",
       "dev": true,
       "requires": {
         "chalk": "^2.4.2",
         "coa": "^2.0.2",
-        "diff": "1.3.2",
-        "lodash": "^4.17.11",
-        "parse5": "1.5.1",
-        "vow": "^0.4.19",
-        "vow-fs": "^0.3.6"
+        "diff": "^4.0.1",
+        "parse5-sax-parser": "^5.1.0"
       }
     },
     "@types/concat-stream": {
@@ -64,9 +61,9 @@
       "dev": true
     },
     "@types/q": {
-      "version": "1.5.1",
-      "resolved": "https://registry.npmjs.org/@types/q/-/q-1.5.1.tgz",
-      "integrity": "sha512-eqz8c/0kwNi/OEHQfvIuJVLTst3in0e7uTKeuY+WL/zfKn0xVujOTp42bS/vUUokhK5P2BppLd9JXMOMHcgbjA==",
+      "version": "1.5.2",
+      "resolved": "https://registry.npmjs.org/@types/q/-/q-1.5.2.tgz",
+      "integrity": "sha512-ce5d3q03Ex0sy4R14722Rmt6MT07Ua+k4FwDfdcToYJcMKNtRVQvJ6JCAPdAmAnbRb6CsX6aYb9m96NGod9uTw==",
       "dev": true
     },
     "@types/qs": {
@@ -438,9 +435,9 @@
       "dev": true
     },
     "diff": {
-      "version": "1.3.2",
-      "resolved": "https://registry.npmjs.org/diff/-/diff-1.3.2.tgz",
-      "integrity": "sha1-/Qeh8fiRUZ2ZBaTJqJ3PWnC2YDc=",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.1.tgz",
+      "integrity": "sha512-s2+XdvhPCOF01LRQBC8hf4vhbVmI2CGS5aZnxLJlT5FtdhPCDFq80q++zK2KlrVorVDdL5BOGZ/VfLrVtYNF+Q==",
       "dev": true
     },
     "doctrine": {
@@ -540,9 +537,9 @@
       "dev": true
     },
     "eslint": {
-      "version": "6.3.0",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-6.3.0.tgz",
-      "integrity": "sha512-ZvZTKaqDue+N8Y9g0kp6UPZtS4FSY3qARxBs7p4f0H0iof381XHduqVerFWtK8DPtKmemqbqCFENWSQgPR/Gow==",
+      "version": "6.4.0",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-6.4.0.tgz",
+      "integrity": "sha512-WTVEzK3lSFoXUovDHEbkJqCVPEPwbhCq4trDktNI6ygs7aO41d4cDT0JFAT5MivzZeVLWlg7vHL+bgrQv/t3vA==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.0.0",
@@ -645,13 +642,21 @@
       }
     },
     "eslint-plugin-es": {
-      "version": "1.4.1",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-es/-/eslint-plugin-es-1.4.1.tgz",
-      "integrity": "sha512-5fa/gR2yR3NxQf+UXkeLeP8FBBl6tSgdrAz1+cF84v1FMM4twGwQoqTnn+QxFLcPOrF4pdKEJKDB/q9GoyJrCA==",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-es/-/eslint-plugin-es-2.0.0.tgz",
+      "integrity": "sha512-f6fceVtg27BR02EYnBhgWLFQfK6bN4Ll0nQFrBHOlCsAyxeZkn0NHns5O0YZOPrV1B3ramd6cgFwaoFLcSkwEQ==",
       "dev": true,
       "requires": {
         "eslint-utils": "^1.4.2",
-        "regexpp": "^2.0.1"
+        "regexpp": "^3.0.0"
+      },
+      "dependencies": {
+        "regexpp": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/regexpp/-/regexpp-3.0.0.tgz",
+          "integrity": "sha512-Z+hNr7RAVWxznLPuA7DIh8UNX1j9CDrUQxskw9IrBE1Dxue2lyXT+shqEIeLUjrokxIP8CMy1WkjgG3rTsd5/g==",
+          "dev": true
+        }
       }
     },
     "eslint-plugin-import": {
@@ -701,12 +706,12 @@
       }
     },
     "eslint-plugin-node": {
-      "version": "9.2.0",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-node/-/eslint-plugin-node-9.2.0.tgz",
-      "integrity": "sha512-2abNmzAH/JpxI4gEOwd6K8wZIodK3BmHbTxz4s79OIYwwIt2gkpEXlAouJXu4H1c9ySTnRso0tsuthSOZbUMlA==",
+      "version": "10.0.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-node/-/eslint-plugin-node-10.0.0.tgz",
+      "integrity": "sha512-1CSyM/QCjs6PXaT18+zuAXsjXGIGo5Rw630rSKwokSs2jrYURQc4R5JZpoanNCqwNmepg+0eZ9L7YiRUJb8jiQ==",
       "dev": true,
       "requires": {
-        "eslint-plugin-es": "^1.4.1",
+        "eslint-plugin-es": "^2.0.0",
         "eslint-utils": "^1.4.2",
         "ignore": "^5.1.1",
         "minimatch": "^3.0.4",
@@ -934,9 +939,9 @@
       "dev": true
     },
     "glob": {
-      "version": "7.1.3",
-      "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.3.tgz",
-      "integrity": "sha512-vcfuiIxogLV4DlGBHIUOwI0IbrJ8HWPc4MU7HzviGeNho/UJDfi6B5p3sHeWIQ0KGIU0Jpxi5ZHxemQfLkkAwQ==",
+      "version": "7.1.4",
+      "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.4.tgz",
+      "integrity": "sha512-hkLPepehmnKk41pUGm3sYxoFs/umurYfYJCerbXEyFIWcAzvpipAgVkBqqT9RBKMGjnq6kMuyYwha6csxbiM1A==",
       "dev": true,
       "requires": {
         "fs.realpath": "^1.0.0",
@@ -963,9 +968,9 @@
       "dev": true
     },
     "graceful-fs": {
-      "version": "4.2.2",
-      "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.2.tgz",
-      "integrity": "sha512-IItsdsea19BoLC7ELy13q1iJFNmd7ofZH5+X/pJr90/nRoPEX0DJo1dHDbgtYWOhJhcCgMDTOw84RZ72q6lB+Q==",
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.1.tgz",
+      "integrity": "sha512-b9usnbDGnD928gJB3LrCmxoibr3VE4U2SMo5PBuBnokWyDADTqDPXg4YpwKF1trpH+UbGp7QLicO3+aWEy0+mw==",
       "dev": true
     },
     "has": {
@@ -990,10 +995,13 @@
       "dev": true
     },
     "hosted-git-info": {
-      "version": "2.8.4",
-      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.4.tgz",
-      "integrity": "sha512-pzXIvANXEFrc5oFFXRMkbLPQ2rXRoDERwDLyrcUxGhaZhgP54BBSl9Oheh7Vv0T090cszWBxPjkQQ5Sq1PbBRQ==",
-      "dev": true
+      "version": "2.8.2",
+      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.2.tgz",
+      "integrity": "sha512-CyjlXII6LMsPMyUzxpTt8fzh5QwzGqPmQXgY/Jyf4Zfp27t/FvfhwoE/8laaMUcMy816CkWF20I7NeQhwwY88w==",
+      "dev": true,
+      "requires": {
+        "lru-cache": "^5.1.1"
+      }
     },
     "htmlparser2": {
       "version": "3.10.1",
@@ -1176,19 +1184,19 @@
       "dev": true
     },
     "jasmine": {
-      "version": "3.4.0",
-      "resolved": "https://registry.npmjs.org/jasmine/-/jasmine-3.4.0.tgz",
-      "integrity": "sha512-sR9b4n+fnBFDEd7VS2el2DeHgKcPiMVn44rtKFumq9q7P/t8WrxsVIZPob4UDdgcDNCwyDqwxCt4k9TDRmjPoQ==",
+      "version": "3.5.0",
+      "resolved": "https://registry.npmjs.org/jasmine/-/jasmine-3.5.0.tgz",
+      "integrity": "sha512-DYypSryORqzsGoMazemIHUfMkXM7I7easFaxAvNM3Mr6Xz3Fy36TupTrAOxZWN8MVKEU5xECv22J4tUQf3uBzQ==",
       "dev": true,
       "requires": {
-        "glob": "^7.1.3",
-        "jasmine-core": "~3.4.0"
+        "glob": "^7.1.4",
+        "jasmine-core": "~3.5.0"
       }
     },
     "jasmine-core": {
-      "version": "3.4.0",
-      "resolved": "https://registry.npmjs.org/jasmine-core/-/jasmine-core-3.4.0.tgz",
-      "integrity": "sha512-HU/YxV4i6GcmiH4duATwAbJQMlE0MsDIR5XmSVxURxKHn3aGAdbY1/ZJFmVRbKtnLwIxxMJD7gYaPsypcbYimg==",
+      "version": "3.5.0",
+      "resolved": "https://registry.npmjs.org/jasmine-core/-/jasmine-core-3.5.0.tgz",
+      "integrity": "sha512-nCeAiw37MIMA9w9IXso7bRaLl+c/ef3wnxsoSAlYrzS+Ot0zTG6nU8G/cIfGkqpkjX2wNaIW9RFG0TwIFnG6bA==",
       "dev": true
     },
     "js-tokens": {
@@ -1266,6 +1274,15 @@
       "integrity": "sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==",
       "dev": true
     },
+    "lru-cache": {
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-5.1.1.tgz",
+      "integrity": "sha512-KpNARQA3Iwv+jTA0utUVVbrh+Jlrr1Fv0e56GGzAFOXN7dk/FviaDW8LHmK52DlcH4WP2n6gI8vN1aesBFgo9w==",
+      "dev": true,
+      "requires": {
+        "yallist": "^3.0.2"
+      }
+    },
     "markdown": {
       "version": "0.5.0",
       "resolved": "https://registry.npmjs.org/markdown/-/markdown-0.5.0.tgz",
@@ -1276,16 +1293,24 @@
       }
     },
     "markdown-it": {
-      "version": "9.1.0",
-      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-9.1.0.tgz",
-      "integrity": "sha512-xHKG4C8iPriyfu/jc2hsCC045fKrMQ0VexX2F1FGYiRxDxqMB2aAhF8WauJ3fltn2kb90moGBkiiEdooGIg55w==",
+      "version": "10.0.0",
+      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-10.0.0.tgz",
+      "integrity": "sha512-YWOP1j7UbDNz+TumYP1kpwnP0aEa711cJjrAQrzd0UXlbJfc5aAq0F/PZHjiioqDC1NKgvIMX+o+9Bk7yuM2dg==",
       "dev": true,
       "requires": {
         "argparse": "^1.0.7",
-        "entities": "~1.1.1",
+        "entities": "~2.0.0",
         "linkify-it": "^2.0.0",
         "mdurl": "^1.0.1",
         "uc.micro": "^1.0.5"
+      },
+      "dependencies": {
+        "entities": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/entities/-/entities-2.0.0.tgz",
+          "integrity": "sha512-D9f7V0JSRwIxlRI2mjMqufDrRDnx8p+eEOz7aUM9SuvF8gsBzra0/6tbjl1m8eQHrZlYj6PxqE00hZ1SAIKPLw==",
+          "dev": true
+        }
       }
     },
     "mdurl": {
@@ -1399,9 +1424,9 @@
       },
       "dependencies": {
         "semver": {
-          "version": "5.7.1",
-          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
-          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
+          "version": "5.7.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.0.tgz",
+          "integrity": "sha512-Ya52jSX2u7QKghxeoFGpLwCtGlt7j0oY9DYb5apt9nPlJ42ID+ulTXESnt/qAQcoSERyZ5sl3LDIOw0nAn/5DA==",
           "dev": true
         }
       }
@@ -1520,11 +1545,20 @@
       }
     },
     "parse5": {
-      "version": "1.5.1",
-      "resolved": "https://registry.npmjs.org/parse5/-/parse5-1.5.1.tgz",
-      "integrity": "sha1-m387DeMr543CQBsXVzzK8Pb1nZQ=",
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/parse5/-/parse5-5.1.0.tgz",
+      "integrity": "sha512-fxNG2sQjHvlVAYmzBZS9YlDp6PTSSDwa98vkD4QgVDDCAo84z5X1t5XyJQ62ImdLXx5NdIIfihey6xpum9/gRQ==",
       "dev": true
     },
+    "parse5-sax-parser": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/parse5-sax-parser/-/parse5-sax-parser-5.1.0.tgz",
+      "integrity": "sha512-VEhdEDhBkoSILPmsZ96SoIIUow3hZbtgQsqXw7r8DxxnqsCIO0fwkT9mWgBcf9SPjVUh92liuEprHrrYzXBPWQ==",
+      "dev": true,
+      "requires": {
+        "parse5": "^5.1.0"
+      }
+    },
     "path-exists": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
@@ -1706,9 +1740,9 @@
       }
     },
     "rxjs": {
-      "version": "6.5.2",
-      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.2.tgz",
-      "integrity": "sha512-HUb7j3kvb7p7eCUHE3FqjoDsC1xfZQ4AHFWfTKSpZ+sAhhz5X1WX0ZuUqWbzB2QhSLp3DoLUG+hMdEDKqWo2Zg==",
+      "version": "6.5.3",
+      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.3.tgz",
+      "integrity": "sha512-wuYsAYYFdWTAnAaPoKGNhfpWwKZbJW+HgAJ+mImp+Epl7BG8oNWBCTyRM8gba9k4lk8BgWdoYm21Mo/RYhhbgA==",
       "dev": true,
       "requires": {
         "tslib": "^1.9.0"
@@ -2027,12 +2061,6 @@
       "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
       "dev": true
     },
-    "uuid": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-2.0.3.tgz",
-      "integrity": "sha1-Z+LoY3lyFVMN/zGOW/nc6/1Hsho=",
-      "dev": true
-    },
     "v8-compile-cache": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/v8-compile-cache/-/v8-compile-cache-2.1.0.tgz",
@@ -2049,33 +2077,6 @@
         "spdx-expression-parse": "^3.0.0"
       }
     },
-    "vow": {
-      "version": "0.4.19",
-      "resolved": "https://registry.npmjs.org/vow/-/vow-0.4.19.tgz",
-      "integrity": "sha512-S+0+CiQlbUhTNWMlJdqo/ARuXOttXdvw5ACGyh1W97NFHUdwt3Fzyaus03Kvdmo733dwnYS9AGJSDg0Zu8mNfA==",
-      "dev": true
-    },
-    "vow-fs": {
-      "version": "0.3.6",
-      "resolved": "https://registry.npmjs.org/vow-fs/-/vow-fs-0.3.6.tgz",
-      "integrity": "sha1-LUxZviLivyYY3fWXq0uqkjvnIA0=",
-      "dev": true,
-      "requires": {
-        "glob": "^7.0.5",
-        "uuid": "^2.0.2",
-        "vow": "^0.4.7",
-        "vow-queue": "^0.4.1"
-      }
-    },
-    "vow-queue": {
-      "version": "0.4.3",
-      "resolved": "https://registry.npmjs.org/vow-queue/-/vow-queue-0.4.3.tgz",
-      "integrity": "sha512-/poAKDTFL3zYbeQg7cl4BGcfP4sGgXKrHnRFSKj97dteUFu8oyXMwIcdwu8NSx/RmPGIuYx1Bik/y5vU4H/VKw==",
-      "dev": true,
-      "requires": {
-        "vow": "^0.4.17"
-      }
-    },
     "vuln-regex-detector": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/vuln-regex-detector/-/vuln-regex-detector-1.3.0.tgz",
@@ -2114,6 +2115,12 @@
       "requires": {
         "mkdirp": "^0.5.1"
       }
+    },
+    "yallist": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.0.3.tgz",
+      "integrity": "sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A==",
+      "dev": true
     }
   }
 }
diff --git a/package.json b/package.json
index ddb684d021..ffa8085b89 100644
--- a/package.json
+++ b/package.json
@@ -29,20 +29,20 @@
     "html"
   ],
   "devDependencies": {
-    "@markedjs/html-differ": "^2.0.1",
+    "@markedjs/html-differ": "^3.0.0",
     "cheerio": "^1.0.0-rc.3",
-    "commonmark": "0.x",
-    "eslint": "^6.3.0",
+    "commonmark": "0.29.x",
+    "eslint": "^6.4.0",
     "eslint-config-standard": "^14.1.0",
     "eslint-plugin-import": "^2.18.2",
-    "eslint-plugin-node": "^9.2.0",
+    "eslint-plugin-node": "^10.0.0",
     "eslint-plugin-promise": "^4.2.1",
     "eslint-plugin-standard": "^4.0.1",
     "eslint-plugin-vuln-regex-detector": "^1.0.4",
     "front-matter": "^3.0.2",
-    "jasmine": "^3.4.0",
-    "markdown": "0.x",
-    "markdown-it": "9.x",
+    "jasmine": "^3.5.0",
+    "markdown": "0.5.x",
+    "markdown-it": "10.x",
     "node-fetch": "^2.6.0",
     "uglify-js": "^3.6.0"
   },
diff --git a/test/.eslintrc.json b/test/.eslintrc.json
index 96779e563a..e9be6873e0 100644
--- a/test/.eslintrc.json
+++ b/test/.eslintrc.json
@@ -3,6 +3,9 @@
   "plugins": [
     "standard"
   ],
+  "globals": {
+    "expectAsync": "readonly"
+  },
   "rules": {
     "semi": ["error", "always"],
     "indent": ["error", 2, {
diff --git a/test/helpers/helpers.js b/test/helpers/helpers.js
index 44632fcda9..f6eb634a72 100644
--- a/test/helpers/helpers.js
+++ b/test/helpers/helpers.js
@@ -4,18 +4,18 @@ const htmlDiffer = require('./html-differ.js');
 beforeEach(() => {
   marked.setOptions(marked.getDefaults());
 
-  jasmine.addMatchers({
+  jasmine.addAsyncMatchers({
     toRender: () => {
       return {
-        compare: (spec, expected) => {
+        compare: async(spec, expected) => {
           const result = {};
           const actual = marked(spec.markdown, spec.options);
-          result.pass = htmlDiffer.isEqual(expected, actual);
+          result.pass = await htmlDiffer.isEqual(expected, actual);
 
           if (result.pass) {
             result.message = `${spec.markdown}\n------\n\nExpected: Should Fail`;
           } else {
-            const diff = htmlDiffer.firstDiff(actual, expected);
+            const diff = await htmlDiffer.firstDiff(actual, expected);
             result.message = `Expected: ${diff.expected}\n  Actual: ${diff.actual}`;
           }
           return result;
diff --git a/test/helpers/html-differ.js b/test/helpers/html-differ.js
index 7386569903..1d92b7d84b 100644
--- a/test/helpers/html-differ.js
+++ b/test/helpers/html-differ.js
@@ -3,32 +3,31 @@ const htmlDiffer = new HtmlDiffer({ ignoreSelfClosingSlash: true });
 
 module.exports = {
   isEqual: htmlDiffer.isEqual.bind(htmlDiffer),
-  firstDiff: (actual, expected, padding) => {
+  firstDiff: async(actual, expected, padding) => {
     padding = padding || 30;
-    const result = htmlDiffer
-      .diffHtml(actual, expected)
-      .reduce((obj, diff) => {
-        if (diff.added) {
-          if (obj.firstIndex === null) {
-            obj.firstIndex = obj.expected.length;
-          }
-          obj.expected += diff.value;
-        } else if (diff.removed) {
-          if (obj.firstIndex === null) {
-            obj.firstIndex = obj.actual.length;
-          }
-          obj.actual += diff.value;
-        } else {
-          obj.actual += diff.value;
-          obj.expected += diff.value;
+    const diffHtml = await htmlDiffer.diffHtml(actual, expected);
+    const result = diffHtml.reduce((obj, diff) => {
+      if (diff.added) {
+        if (obj.firstIndex === null) {
+          obj.firstIndex = obj.expected.length;
         }
+        obj.expected += diff.value;
+      } else if (diff.removed) {
+        if (obj.firstIndex === null) {
+          obj.firstIndex = obj.actual.length;
+        }
+        obj.actual += diff.value;
+      } else {
+        obj.actual += diff.value;
+        obj.expected += diff.value;
+      }
 
-        return obj;
-      }, {
-        firstIndex: null,
-        actual: '',
-        expected: ''
-      });
+      return obj;
+    }, {
+      firstIndex: null,
+      actual: '',
+      expected: ''
+    });
 
     return {
       actual: result.actual.substring(result.firstIndex - padding, result.firstIndex + padding),
diff --git a/test/specs/run-spec.js b/test/specs/run-spec.js
index 2311ac1392..a9fe3d72c8 100644
--- a/test/specs/run-spec.js
+++ b/test/specs/run-spec.js
@@ -23,12 +23,12 @@ function runSpecs(title, dir, showCompletionTable, options) {
             // eslint-disable-next-line no-eval
             spec.options.sanitizer = eval(spec.options.sanitizer);
           }
-          (spec.only ? fit : (spec.skip ? xit : it))('should ' + passFail + example, () => {
+          (spec.only ? fit : (spec.skip ? xit : it))('should ' + passFail + example, async() => {
             const before = process.hrtime();
             if (spec.shouldFail) {
-              expect(spec).not.toRender(spec.html);
+              await expectAsync(spec).not.toRender(spec.html);
             } else {
-              expect(spec).toRender(spec.html);
+              await expectAsync(spec).toRender(spec.html);
             }
             const elapsed = process.hrtime(before);
             if (elapsed[0] > 0) {