diff --git a/pkgs/applications/misc/xchm/default.nix b/pkgs/applications/misc/xchm/default.nix
index b574b5fa5ec9..aed55c67c100 100644
--- a/pkgs/applications/misc/xchm/default.nix
+++ b/pkgs/applications/misc/xchm/default.nix
@@ -1,10 +1,10 @@
 {stdenv, fetchurl, wxGTK, chmlib}:
 
 stdenv.mkDerivation {
-  name = "xchm-1.17";
+  name = "xchm-1.18";
   src = fetchurl {
-    url = mirror://sourceforge/xchm/xchm-1.17.tar.gz;
-    sha256 = "0yizisn4833nnpd4apallyg8iv334y00hv3awbsbc0ks2zf93x0n";
+    url = mirror://sourceforge/xchm/xchm-1.18.tar.gz;
+    sha256 = "1wvvyzqbmj3c6i46x4vpxkawjwmmp276r84ifvlzaj5q4b52g5gw";
   };
   buildInputs = [wxGTK chmlib];