diff --git a/pkgs/development/libraries/haskell/symbol/default.nix b/pkgs/development/libraries/haskell/symbol/default.nix
index 42cfd77f1c8..b8dd2aa69a2 100644
--- a/pkgs/development/libraries/haskell/symbol/default.nix
+++ b/pkgs/development/libraries/haskell/symbol/default.nix
@@ -1,10 +1,10 @@
-{ cabal, syb }:
+{ cabal, deepseq, syb }:
 
 cabal.mkDerivation (self: {
   pname = "symbol";
-  version = "0.1.1.1";
-  sha256 = "1vda97jh9jrvb4l9v9m3xzv8z96jdwf5fji643i6ff3n3h9ysn77";
-  buildDepends = [ syb ];
+  version = "0.1.3";
+  sha256 = "1kz4kzbv6bara31pv4vc75r6wvjln6md8gjlsxx8hf50ab8vb68j";
+  buildDepends = [ deepseq syb ];
   meta = {
     homepage = "http://www.eecs.harvard.edu/~mainland/";
     description = "A 'Symbol' type for fast symbol comparison";