diff --git a/pkgs/development/libraries/haskell/ghc-mod/default.nix b/pkgs/development/libraries/haskell/ghc-mod/default.nix
index f12f789ea99..31edc7635cf 100644
--- a/pkgs/development/libraries/haskell/ghc-mod/default.nix
+++ b/pkgs/development/libraries/haskell/ghc-mod/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "ghc-mod";
-  version = "1.12.3";
-  sha256 = "1dc919xbq7aqvpayqh9czvpzz4w4j082d1fjv0n9b7i4a780xghv";
+  version = "1.12.4";
+  sha256 = "1f4pdwimzc2i7bb7ccpbl8pn18ygnqd65xw1z5cmhlswasbdab14";
   isLibrary = false;
   isExecutable = true;
   buildDepends = [