diff --git a/demo/yarn.lock b/demo/yarn.lock
index 9b5e10b..26f5d14 100644
--- a/demo/yarn.lock
+++ b/demo/yarn.lock
@@ -3867,13 +3867,13 @@ postcss-value-parser@^3.3.0, postcss-value-parser@^3.3.1:
   integrity sha512-pISE66AbVkp4fDQ7VHBwRNXzAAKJjw4Vw7nWI/+Q3vuly7SNfgYXvm6i5IgFylHGK5sP/xHAbB7N49OS4gWNyQ==
 
 postcss@^7.0.5, postcss@^7.0.6:
-  version "7.0.8"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.8.tgz#2a3c5f2bdd00240cd0d0901fd998347c93d36696"
-  integrity sha512-WudsIzuTKRw9IInRTPBgVXJ7DKR26HT09Rxp0g3w0Fqh3TUtYICcUmvC0xURj04o3vdcDtnjCAUCECg/p341iQ==
+  version "7.0.36"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.36.tgz#056f8cffa939662a8f5905950c07d5285644dfcb"
+  integrity sha512-BebJSIUMwJHRH0HAQoxN4u1CN86glsrwsW0q7T+/m44eXOUAxSNdHRkNZPYz5vVUbg17hFgOQDE7fZk7li3pZw==
   dependencies:
     chalk "^2.4.2"
     source-map "^0.6.1"
-    supports-color "^6.0.0"
+    supports-color "^6.1.0"
 
 prepend-http@^1.0.0:
   version "1.0.4"
@@ -4740,7 +4740,7 @@ supports-color@^5.1.0, supports-color@^5.3.0, supports-color@^5.5.0:
   dependencies:
     has-flag "^3.0.0"
 
-supports-color@^6.0.0:
+supports-color@^6.1.0:
   version "6.1.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-6.1.0.tgz#0764abc69c63d5ac842dd4867e8d025e880df8f3"
   integrity sha512-qe1jfm1Mg7Nq/NSh6XE24gPXROEVsWHxC1LIx//XNlD9iw7YZQGjZNjYN7xGaEG6iKdA8EtNFW6R0gjnVXp+wQ==