diff --git a/pkgs/development/tools/misc/cpphs/default.nix b/pkgs/development/tools/misc/cpphs/default.nix
index f3a724f3039..8167ae92416 100644
--- a/pkgs/development/tools/misc/cpphs/default.nix
+++ b/pkgs/development/tools/misc/cpphs/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "cpphs";
-  version = "1.18.5";
-  sha256 = "0bqfz0wkfnxvv711fgmhmh6rbwffgna1pfqbj7whb6crqji9w7g7";
+  version = "1.18.6";
+  sha256 = "0ds712zabigswf3cljzh7f2ys4rl1fj2cf76lbw856adm8514gxc";
   isLibrary = true;
   isExecutable = true;
   buildDepends = [ polyparse ];