diff --git a/project/build.sbt b/project/build.sbt
index 6b150b3..9962d58 100644
--- a/project/build.sbt
+++ b/project/build.sbt
@@ -1,2 +1,2 @@
 libraryDependencies += "org.scalameta" %% "scalameta" % "4.4.32"
-libraryDependencies += "com.helger" % "ph-css" % "6.4.1"
+libraryDependencies += "com.helger" % "ph-css" % "6.4.3"