diff --git a/pkgs/servers/monitoring/nagios/default.nix b/pkgs/servers/monitoring/nagios/default.nix
index b0e2f29a3b48..47bc6d58da90 100644
--- a/pkgs/servers/monitoring/nagios/default.nix
+++ b/pkgs/servers/monitoring/nagios/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "nagios-${version}";
-  version = "4.2.4";
+  version = "4.3.4";
 
   src = fetchurl {
     url = "mirror://sourceforge/nagios/nagios-4.x/${name}/${name}.tar.gz";
-    sha256 = "0w0blbwiw0ps04b7gkyyk89qkgwsxh6gydhmggbm1kl3ar3mq1dh";
+    sha256 = "1wa4m952sb23dqi5w759adimsp21bkhp598rpq9dnhz3v497h2y9";
   };
 
   patches = [ ./nagios.patch ];