diff --git a/pkgs/tools/text/mairix/default.nix b/pkgs/tools/text/mairix/default.nix
index feaf3afe52b4..551d0b9f74a9 100644
--- a/pkgs/tools/text/mairix/default.nix
+++ b/pkgs/tools/text/mairix/default.nix
@@ -1,11 +1,11 @@
 { stdenv, fetchurl, zlib, bzip2, bison, flex }:
 
 stdenv.mkDerivation rec {
-  name = "mairix-0.22";
+  name = "mairix-0.23";
 
   src = fetchurl {
     url = "mirror://sourceforge/mairix/${name}.tar.gz";
-    sha256 = "0kwxq738nbv8ip5gkq2bw320qs1vg0pnv7wsc0p5cxwzxxrv47ql";
+    sha256 = "1yzjpmsih6c60ks0d0ia153z9g35nj7dmk98383m0crw31dj6kl0";
   };
 
   buildInputs = [ zlib bzip2 bison flex ];