diff --git a/pkgs/development/tools/misc/cpphs/default.nix b/pkgs/development/tools/misc/cpphs/default.nix
index 8d03d8ee4cb2..72a6571f3ccf 100644
--- a/pkgs/development/tools/misc/cpphs/default.nix
+++ b/pkgs/development/tools/misc/cpphs/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "cpphs";
-  version = "1.18.3";
-  sha256 = "0m2083ynjfxad4ykvpm6c7q1clrm7nsvbwv10abhyzqkpazyzzxy";
+  version = "1.18.4";
+  sha256 = "0rmcq66wn7lsc5g1wk6bbsr7jiw8h6bz5cbvdywnv7vmwsx8gh51";
   isLibrary = true;
   isExecutable = true;
   buildDepends = [ polyparse ];