diff --git a/src/frontend/yarn.lock b/src/frontend/yarn.lock
index 6c7461f..ebc45dd 100644
--- a/src/frontend/yarn.lock
+++ b/src/frontend/yarn.lock
@@ -690,7 +690,7 @@ babel-plugin-transform-strict-mode@^6.24.1:
     babel-runtime "^6.22.0"
     babel-types "^6.24.1"
 
-babel-polyfill@^6.23.0, babel-polyfill@^6.26.0:
+babel-polyfill@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-polyfill/-/babel-polyfill-6.26.0.tgz#379937abc67d7895970adc621f284cd966cf2153"
   dependencies:
@@ -4181,8 +4181,8 @@ tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
 
 ua-parser-js@^0.7.9:
-  version "0.7.14"
-  resolved "https://registry.yarnpkg.com/ua-parser-js/-/ua-parser-js-0.7.14.tgz#110d53fa4c3f326c121292bbeac904d2e03387ca"
+  version "0.7.28"
+  resolved "https://registry.yarnpkg.com/ua-parser-js/-/ua-parser-js-0.7.28.tgz#8ba04e653f35ce210239c64661685bf9121dec31"
 
 uglify-js@^2.8.29:
   version "2.8.29"