diff --git a/nonlinear-optimization.cabal b/nonlinear-optimization.cabal
--- a/nonlinear-optimization.cabal
+++ b/nonlinear-optimization.cabal
@@ -3,7 +3,7 @@
 Tested-With:         GHC
 Category:            Math
 Name:                nonlinear-optimization
-Version:             0.3.8
+Version:             0.3.9
 Stability:           experimental
 License:             GPL
 License-File:        LICENSE
@@ -39,7 +39,7 @@
   Default:     False
 
 Source-repository head
-  type: darcs
+  type: git
   location: https://github.com/meteficha/nonlinear-optimization
 
 Library