Bump version number to 0.6.1
diff --git a/predictionio.gemspec b/predictionio.gemspec
index 6ff8ca9..c1298cf 100644
--- a/predictionio.gemspec
+++ b/predictionio.gemspec
@@ -6,7 +6,7 @@
 provides convenient access of the PredictionIO API to Ruby programmers so that
 they can focus on their application logic.
   EOF
-  s.version = "0.6.0"
+  s.version = "0.6.1"
   s.author = "The PredictionIO Team"
   s.email = "support@prediction.io"
   s.homepage = "http://prediction.io"