diff --git a/yarn.lock b/yarn.lock
index c077cb9..9ed1f05 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4510,13 +4510,7 @@ mkdirp@0.5.1, mkdirp@0.5.x, "mkdirp@>=0.5 0", mkdirp@^0.5.1, mkdirp@~0.5.0, mkdi
   dependencies:
     minimist "0.0.8"
 
-moment-timezone@^0.5.14:
-  version "0.5.14"
-  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.14.tgz#4eb38ff9538b80108ba467a458f3ed4268ccfcb1"
-  dependencies:
-    moment ">= 2.9.0"
-
-"moment@>= 2.9.0", moment@^2.21.0:
+moment@^2.21.0:
   version "2.21.0"
   resolved "https://registry.yarnpkg.com/moment/-/moment-2.21.0.tgz#2a114b51d2a6ec9e6d83cf803f838a878d8a023a"
 
@@ -6379,8 +6373,8 @@ string_decoder@~0.10.x:
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
 
 stringstream@~0.0.4, stringstream@~0.0.5:
-  version "0.0.5"
-  resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.5.tgz#4e484cd4de5a0bbbee18e46307710a8a81621878"
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.6.tgz#7880225b0d4ad10e30927d167a1d6f2fd3b33a72"
 
 strip-ansi@3.0.1, strip-ansi@^3.0.0, strip-ansi@^3.0.1:
   version "3.0.1"