diff --git a/demos/yarn.lock b/demos/yarn.lock
index 4c03d7a79e..7b3bebb1fb 100644
--- a/demos/yarn.lock
+++ b/demos/yarn.lock
@@ -1975,8 +1975,8 @@ css-selector-tokenizer@^0.7.0:
     regexpu-core "^1.0.0"
 
 css-what@2.1:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/css-what/-/css-what-2.1.0.tgz#9467d032c38cfaefb9f2d79501253062f87fa1bd"
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/css-what/-/css-what-2.1.3.tgz#a6d7604573365fe74686c3f311c56513d88285f2"
 
 cssbeautify@^0.3.1:
   version "0.3.1"