diff --git a/package.json b/package.json
index 337d5d4f..934e409f 100644
--- a/package.json
+++ b/package.json
@@ -103,7 +103,7 @@
     "webpack-bundle-analyzer": "^3.3.2"
   },
   "devDependencies": {
-    "assert": "^1.5.0",
+    "assert": "^2.0.0",
     "eslint-plugin-html": "^5.0.3",
     "fake-indexeddb": "^2.1.0",
     "mocha": "^6.1.4",
diff --git a/yarn.lock b/yarn.lock
index 20f296f9..88e32584 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -642,13 +642,15 @@ assert@^1.1.1:
   dependencies:
     util "0.10.3"
 
-assert@^1.5.0:
-  version "1.5.0"
-  resolved "https://registry.yarnpkg.com/assert/-/assert-1.5.0.tgz#55c109aaf6e0aefdb3dc4b71240c70bf574b18eb"
-  integrity sha512-EDsgawzwoun2CZkCgtxJbv392v4nbk9XDD06zI+kQYoBM/3RBWLlEyJARDOmhAAosBjWACEkKL6S+lIZtcAubA==
+assert@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/assert/-/assert-2.0.0.tgz#95fc1c616d48713510680f2eaf2d10dd22e02d32"
+  integrity sha512-se5Cd+js9dXJnu6Ag2JFc00t+HmHOen+8Q+L7O9zI0PqQXr20uk2J0XQqMxZEeo5U50o8Nvmmx7dZrl+Ufr35A==
   dependencies:
-    object-assign "^4.1.1"
-    util "0.10.3"
+    es6-object-assign "^1.1.0"
+    is-nan "^1.2.1"
+    object-is "^1.0.1"
+    util "^0.12.0"
 
 assertion-error@^1.0.1, assertion-error@^1.1.0:
   version "1.1.0"
@@ -2452,7 +2454,7 @@ deep-is@~0.1.3:
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
   integrity sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=
 
-define-properties@^1.1.2, define-properties@^1.1.3:
+define-properties@^1.1.1, define-properties@^1.1.2, define-properties@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/define-properties/-/define-properties-1.1.3.tgz#cf88da6cbee26fe6db7094f61d870cbd84cee9f1"
   integrity sha512-3MqfYKj2lLzdMSf8ZIZE/V+Zuy+BgD6f164e8K2w7dgnpKArBDerGYpM46IYYcjnkdPNMjPk9A6VFB8+3SKlXQ==
@@ -2798,6 +2800,11 @@ es-to-primitive@^1.2.0:
     is-date-object "^1.0.1"
     is-symbol "^1.0.2"
 
+es6-object-assign@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/es6-object-assign/-/es6-object-assign-1.1.0.tgz#c2c3582656247c39ea107cb1e6652b6f9f24523c"
+  integrity sha1-wsNYJlYkfDnqEHyx5mUrb58kUjw=
+
 escape-html@^1.0.3, escape-html@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
@@ -4008,6 +4015,11 @@ is-accessor-descriptor@^1.0.0:
   dependencies:
     kind-of "^6.0.0"
 
+is-arguments@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/is-arguments/-/is-arguments-1.0.4.tgz#3faf966c7cba0ff437fb31f6250082fcf0448cf3"
+  integrity sha512-xPh0Rmt8NE65sNzvyUmWgI1tz3mKq74lGA0mL8LYZcoIzKOzDh6HmrYm3d18k60nHerC8A9Km8kYu87zfSFnLA==
+
 is-arrayish@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.2.1.tgz#77c99840527aa8ecb1a8ba697b80645a7a926a9d"
@@ -4144,6 +4156,11 @@ is-fullwidth-code-point@^2.0.0:
   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz#a3b30a5c4f199183167aaab93beefae3ddfb654f"
   integrity sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=
 
+is-generator-function@^1.0.7:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/is-generator-function/-/is-generator-function-1.0.7.tgz#d2132e529bb0000a7f80794d4bdf5cd5e5813522"
+  integrity sha512-YZc5EwyO4f2kWCax7oegfuSr9mFz1ZvieNYBEjmukLxgXfBUbxAWGVF7GZf0zidYtoBl3WvC07YK0wT76a+Rtw==
+
 is-glob@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-2.0.1.tgz#d096f926a3ded5600f3fdfd91198cb0888c2d863"
@@ -4177,6 +4194,13 @@ is-jquery-obj@^0.1.0:
   resolved "https://registry.yarnpkg.com/is-jquery-obj/-/is-jquery-obj-0.1.1.tgz#e8d9cc9737b1ab0733b50303e33a38ed7cc2f60b"
   integrity sha512-18toSebUVF7y717dgw/Dzn6djOCqrkiDp3MhB8P6TdKyCVkbD1ZwE7Uz8Hwx6hUPTvKjbyYH9ncXT4ts4qLaSA==
 
+is-nan@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/is-nan/-/is-nan-1.2.1.tgz#9faf65b6fb6db24b7f5c0628475ea71f988401e2"
+  integrity sha1-n69ltvttskt/XAYoR16nH5iEAeI=
+  dependencies:
+    define-properties "^1.1.1"
+
 is-number@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-3.0.0.tgz#24fd6201a4782cf50561c810276afc7d12d71195"
@@ -5246,6 +5270,11 @@ object-copy@^0.1.0:
     define-property "^0.2.5"
     kind-of "^3.0.3"
 
+object-is@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/object-is/-/object-is-1.0.1.tgz#0aa60ec9989a0b3ed795cf4d06f62cf1ad6539b6"
+  integrity sha1-CqYOyZiaCz7Xlc9NBvYs8a1lObY=
+
 object-keys@^1.0.11:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.1.0.tgz#11bd22348dd2e096a045ab06f6c85bcc340fa032"
@@ -5273,6 +5302,16 @@ object.assign@4.1.0:
     has-symbols "^1.0.0"
     object-keys "^1.0.11"
 
+object.entries@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/object.entries/-/object.entries-1.1.0.tgz#2024fc6d6ba246aee38bdb0ffd5cfbcf371b7519"
+  integrity sha512-l+H6EQ8qzGRxbkHOd5I/aHRhHDKoQXQ8g0BYt4uSweQU1/J6dZUOyWh9a2Vky35YCKjzmgxOzta2hH6kf9HuXA==
+  dependencies:
+    define-properties "^1.1.3"
+    es-abstract "^1.12.0"
+    function-bind "^1.1.1"
+    has "^1.0.3"
+
 object.getownpropertydescriptors@^2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/object.getownpropertydescriptors/-/object.getownpropertydescriptors-2.0.3.tgz#8758c846f5b407adab0f236e0986f14b051caa16"
@@ -7714,6 +7753,17 @@ util@^0.11.0:
   dependencies:
     inherits "2.0.3"
 
+util@^0.12.0:
+  version "0.12.0"
+  resolved "https://registry.yarnpkg.com/util/-/util-0.12.0.tgz#bb5e3d29ba2703c7add0ad337003be3ca477798a"
+  integrity sha512-pPSOFl7VLhZ7LO/SFABPraZEEurkJUWSMn3MuA/r3WQZc+Z1fqou2JqLSOZbCLl73EUIxuUVX8X4jkX2vfJeAA==
+  dependencies:
+    inherits "2.0.3"
+    is-arguments "^1.0.4"
+    is-generator-function "^1.0.7"
+    object.entries "^1.1.0"
+    safe-buffer "^5.1.2"
+
 utils-merge@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"