diff --git a/mobile-web/package.json b/mobile-web/package.json
index 66f4e2b..eaf6803 100644
--- a/mobile-web/package.json
+++ b/mobile-web/package.json
@@ -15,7 +15,7 @@
     "@rollup/plugin-node-resolve": "7.0.0",
     "babelify": "10.0.0",
     "browserify": "16.5.0",
-    "chai": "4.2.0",
+    "chai": "4.3.4",
     "karma": "4.4.1",
     "karma-browserify": "6.1.0",
     "karma-chai": "0.1.0",
diff --git a/mobile-web/yarn.lock b/mobile-web/yarn.lock
index c3befa7..ff5fb27 100644
--- a/mobile-web/yarn.lock
+++ b/mobile-web/yarn.lock
@@ -1317,16 +1317,16 @@ caniuse-lite@^1.0.30001022:
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001023.tgz#b82155827f3f5009077bdd2df3d8968bcbcc6fc4"
   integrity sha512-C5TDMiYG11EOhVOA62W1p3UsJ2z4DsHtMBQtjzp3ZsUglcQn62WOUgW0y795c7A5uZ+GCEIvzkMatLIlAsbNTA==
 
-chai@4.2.0:
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/chai/-/chai-4.2.0.tgz#760aa72cf20e3795e84b12877ce0e83737aa29e5"
-  integrity sha512-XQU3bhBukrOsQCuwZndwGcCVQHyZi53fQ6Ys1Fym7E4olpIqqZZhhoFJoaKVvV17lWQoXYwgWN2nF5crA8J2jw==
+chai@4.3.4:
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/chai/-/chai-4.3.4.tgz#b55e655b31e1eac7099be4c08c21964fce2e6c49"
+  integrity sha512-yS5H68VYOCtN1cjfwumDSuzn/9c+yza4f3reKXlE5rUg7SFcCEy90gJvydNgOYtblyf4Zi6jIWRnXOgErta0KA==
   dependencies:
     assertion-error "^1.1.0"
     check-error "^1.0.2"
     deep-eql "^3.0.1"
     get-func-name "^2.0.0"
-    pathval "^1.1.0"
+    pathval "^1.1.1"
     type-detect "^4.0.5"
 
 chalk@^2.0.0, chalk@^2.0.1:
@@ -3257,10 +3257,10 @@ path-to-regexp@^1.7.0:
   dependencies:
     isarray "0.0.1"
 
-pathval@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/pathval/-/pathval-1.1.0.tgz#b942e6d4bde653005ef6b71361def8727d0645e0"
-  integrity sha1-uULm1L3mUwBe9rcTYd74cn0GReA=
+pathval@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/pathval/-/pathval-1.1.1.tgz#8534e77a77ce7ac5a2512ea21e0fdb8fcf6c3d8d"
+  integrity sha512-Dp6zGqpTdETdR63lehJYPeIOqpiNBNtc7BpWSLrOje7UaIsE5aY92r/AunQA7rsXvet3lrJ3JnZX29UPTKXyKQ==
 
 pbkdf2@^3.0.3:
   version "3.0.17"