diff --git a/pkgs/development/libraries/haskell/syntactic/default.nix b/pkgs/development/libraries/haskell/syntactic/default.nix
index e18cf7b5937..39fbeebd33c 100644
--- a/pkgs/development/libraries/haskell/syntactic/default.nix
+++ b/pkgs/development/libraries/haskell/syntactic/default.nix
@@ -5,8 +5,8 @@
 
 cabal.mkDerivation (self: {
   pname = "syntactic";
-  version = "1.11";
-  sha256 = "1j4k4qwi17x9z0cjf9adndaj5wbs8prs36xpz2icf7mlwcr9pvrz";
+  version = "1.12.1";
+  sha256 = "0p68jgfwzr9mvgrcjdj3235109nhpaichm5irj9m29076axrsb94";
   buildDepends = [
     constraints dataHash mtl transformers treeView tuple
   ];