diff --git a/pkgs/development/libraries/haskell/string-combinators/default.nix b/pkgs/development/libraries/haskell/string-combinators/default.nix
index bfc38fb07e8..1f6cf569b56 100644
--- a/pkgs/development/libraries/haskell/string-combinators/default.nix
+++ b/pkgs/development/libraries/haskell/string-combinators/default.nix
@@ -1,10 +1,9 @@
-{ cabal, baseUnicodeSymbols }:
+{ cabal }:
 
 cabal.mkDerivation (self: {
   pname = "string-combinators";
-  version = "0.6.0.4";
-  sha256 = "0r1za5ypx9fz073h1yljjdkxmz0h77vg94bk827ndwkfgzgpzvh7";
-  buildDepends = [ baseUnicodeSymbols ];
+  version = "0.6.0.5";
+  sha256 = "07ky2z5f1l5mb7r3rvyraak0bzciq4krkg5lv8g0a5vxpnzlm4cl";
   meta = {
     homepage = "https://github.com/basvandijk/string-combinators";
     description = "Polymorphic functions to build and combine stringlike values";