diff --git a/pkgs/development/tools/continuous-integration/jenkins/default.nix b/pkgs/development/tools/continuous-integration/jenkins/default.nix
index edc551a70541..e18d2dd4b475 100644
--- a/pkgs/development/tools/continuous-integration/jenkins/default.nix
+++ b/pkgs/development/tools/continuous-integration/jenkins/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "jenkins-${version}";
-  version = "1.638";
+  version = "1.643";
 
   src = fetchurl {
     url = "http://mirrors.jenkins-ci.org/war/${version}/jenkins.war";
-    sha256 = "1kbx9n2hj8znw0ykvgvrlf2v472f1nkdwix6a2v4rjxkgmghxmh8";
+    sha256 = "b8c6387e56d04a0a4a7ec8d9dacd379fbd5d4001d01fdfcd443f9864809f9293";
   };
   meta = with stdenv.lib; {
     description = "An extendable open source continuous integration server";