diff --git a/src/FSharp/yarn.lock b/src/FSharp/yarn.lock
index 84df5f6..86fc586 100644
--- a/src/FSharp/yarn.lock
+++ b/src/FSharp/yarn.lock
@@ -1150,8 +1150,8 @@ css-select@^1.1.0:
     nth-check "~1.0.1"
 
 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"
 
 currently-unhandled@^0.4.1:
   version "0.4.1"