diff --git a/pkgs/applications/editors/leksah/default.nix b/pkgs/applications/editors/leksah/default.nix
index 9e576bb9109..c7bdd7bfc8e 100644
--- a/pkgs/applications/editors/leksah/default.nix
+++ b/pkgs/applications/editors/leksah/default.nix
@@ -1,12 +1,12 @@
-{cabal, gtk2hs, binary, parsec, regexPosix, utf8String, libedit, makeWrapper}:
+{cabal, gtk2hs, binary, parsec, regexPosix, regexCompat, utf8String, libedit, makeWrapper}:
 
 cabal.mkDerivation (self : {
   pname = "leksah";
-  version = "0.4.4.1";
-  sha256 = "092a8gi73jhalgs4ppg8ki761vwk3gdnjwlyd4chnahbv5i1wrjw";
+  version = "0.6.1";
+  sha256 = "de4e0974be3df0e58fd26bfbb76594d81514f1e1d898b9f47881b42084bacf35";
 
   # !!! The explicit libedit dependency shouldn't be necessary.
-  extraBuildInputs = [gtk2hs binary parsec regexPosix utf8String libedit makeWrapper];
+  extraBuildInputs = [gtk2hs binary parsec regexPosix regexCompat utf8String libedit makeWrapper];
 
   preConfigure =
     ''
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 1a81a15268f..d5574ea62aa 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -598,7 +598,7 @@ rec {
   };
 
   leksah = import ../applications/editors/leksah {
-    inherit cabal gtk2hs binary parsec regexPosix utf8String;
+    inherit cabal gtk2hs binary parsec regexPosix regexCompat utf8String;
     inherit (pkgs) libedit makeWrapper;
   };