diff --git a/yarn.lock b/yarn.lock
index b623e84..41129ee 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4550,18 +4550,6 @@ fbjs@^0.8.0:
     setimmediate "^1.0.5"
     ua-parser-js "^0.7.18"
 
-fbjs@^0.8.16:
-  version "0.8.16"
-  resolved "https://registry.yarnpkg.com/fbjs/-/fbjs-0.8.16.tgz#5e67432f550dc41b572bf55847b8aca64e5337db"
-  dependencies:
-    core-js "^1.0.0"
-    isomorphic-fetch "^2.1.1"
-    loose-envify "^1.0.0"
-    object-assign "^4.1.0"
-    promise "^7.1.1"
-    setimmediate "^1.0.5"
-    ua-parser-js "^0.7.9"
-
 fbjs@^0.8.9:
   version "0.8.12"
   resolved "https://registry.yarnpkg.com/fbjs/-/fbjs-0.8.12.tgz#10b5d92f76d45575fd63a217d4ea02bea2f8ed04"
@@ -6292,9 +6280,9 @@ map-visit@^1.0.0:
     object-visit "^1.0.0"
 
 markdown-to-jsx@^6.9.1, markdown-to-jsx@^6.9.3:
-  version "6.10.3"
-  resolved "https://registry.yarnpkg.com/markdown-to-jsx/-/markdown-to-jsx-6.10.3.tgz#7f0946684acd321125ff2de7fd258a9b9c7c40b7"
-  integrity sha512-PSoUyLnW/xoW6RsxZrquSSz5eGEOTwa15H5eqp3enmrp8esmgDJmhzd6zmQ9tgAA9TxJzx1Hmf3incYU/IamoQ==
+  version "6.11.4"
+  resolved "https://registry.yarnpkg.com/markdown-to-jsx/-/markdown-to-jsx-6.11.4.tgz#b4528b1ab668aef7fe61c1535c27e837819392c5"
+  integrity sha512-3lRCD5Sh+tfA52iGgfs/XZiw33f7fFX9Bn55aNnVNUd2GzLDkOWyKYYD8Yju2B1Vn+feiEdgJs8T6Tg0xNokPw==
   dependencies:
     prop-types "^15.6.2"
     unquote "^1.1.0"
@@ -6906,6 +6894,7 @@ number-is-nan@^1.0.0:
 object-assign@^4.0.1, object-assign@^4.1.0, object-assign@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
+  integrity sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM=
 
 object-copy@^0.1.0:
   version "0.1.0"
@@ -7645,14 +7634,7 @@ prop-types-extra@^1.0.1:
     react-is "^16.3.2"
     warning "^3.0.0"
 
-prop-types@^15.5.10:
-  version "15.5.10"
-  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.5.10.tgz#2797dfc3126182e3a95e3dfbb2e893ddd7456154"
-  dependencies:
-    fbjs "^0.8.9"
-    loose-envify "^1.3.1"
-
-prop-types@^15.5.4, prop-types@^15.5.6, prop-types@^15.6.1, prop-types@^15.6.2, prop-types@^15.7.2:
+prop-types@^15.5.10, prop-types@^15.5.4, prop-types@^15.5.6, prop-types@^15.5.8, prop-types@^15.6.0, prop-types@^15.6.1, prop-types@^15.6.2, prop-types@^15.7.2:
   version "15.7.2"
   resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.7.2.tgz#52c41e75b8c87e72b9d9360e0206b99dcbffa6c5"
   integrity sha512-8QQikdH7//R2vurIJSutZ1smHYTcLpRWEOlHnzcWHmBYrOGUysKwSsrC89BCiFj3CbrfJ/nXFdJepOVrY1GCHQ==
@@ -7661,14 +7643,6 @@ prop-types@^15.5.4, prop-types@^15.5.6, prop-types@^15.6.1, prop-types@^15.6.2,
     object-assign "^4.1.1"
     react-is "^16.8.1"
 
-prop-types@^15.5.8, prop-types@^15.6.0:
-  version "15.6.0"
-  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.6.0.tgz#ceaf083022fc46b4a35f69e13ef75aed0d639856"
-  dependencies:
-    fbjs "^0.8.16"
-    loose-envify "^1.3.1"
-    object-assign "^4.1.1"
-
 property-information@^5.0.1:
   version "5.3.0"
   resolved "https://registry.yarnpkg.com/property-information/-/property-information-5.3.0.tgz#bc87ac82dc4e72a31bb62040544b1bf9653da039"
@@ -8041,9 +8015,9 @@ react-is@^16.7.0:
   integrity sha512-BXUMf9sIOPXXZWqr7+c5SeOKJykyVr2u0UDzEf4LNGc6taGkQe1A9DFD07umCIXz45RLr9oAAwZbAJ0Pkknfaw==
 
 react-is@^16.8.1:
-  version "16.8.6"
-  resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.8.6.tgz#5bbc1e2d29141c9fbdfed456343fe2bc430a6a16"
-  integrity sha512-aUk3bHfZ2bRSVFFbbeVS4i+lNPZr3/WM5jT2J5omUVV1zzcs1nAaf3l51ctA5FFvCRbhrH0bdAsRRQddFJZPtA==
+  version "16.13.1"
+  resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.13.1.tgz#789729a4dc36de2999dc156dd6c1d9c18cea56a4"
+  integrity sha512-24e6ynE2H+OKt4kqsOvNd8kBpV65zoxbA4BVsEOB3ARVWQki/DHzaUoC5KuON/BiccDaCCTZBuOcfZs70kR8bQ==
 
 react-lazyload@^2.3.0:
   version "2.6.2"