diff --git a/Formula/clhep.rb b/Formula/clhep.rb
index 58d0456e95..786a75c1b7 100644
--- a/Formula/clhep.rb
+++ b/Formula/clhep.rb
@@ -1,8 +1,8 @@
 class Clhep < Formula
   desc "Class Library for High Energy Physics"
   homepage "https://proj-clhep.web.cern.ch/proj-clhep/"
-  url "https://proj-clhep.web.cern.ch/proj-clhep/DISTRIBUTION/tarFiles/clhep-2.3.3.1.tgz"
-  sha256 "cd74bfae4773620dd0c7cc9c1696a08386931d7e47a3906aa632cc5cb44ed6bd"
+  url "https://proj-clhep.web.cern.ch/proj-clhep/DISTRIBUTION/tarFiles/clhep-2.3.4.3.tgz"
+  sha256 "1019479265f956bd660c11cb439e1443d4fd1655e8d51accf8b1e703e4262dff"
 
   bottle do
     cellar :any