Fix core dependency
diff --git a/build.sbt b/build.sbt
index 6105185..a54ce50 100644
--- a/build.sbt
+++ b/build.sbt
@@ -7,7 +7,7 @@
 organization := "io.prediction"
 
 libraryDependencies ++= Seq(
-  "io.prediction"    %% "core"          % "0.8.6-SNAPSHOT" % "provided",
+  "io.prediction"    %% "core"          % "0.8.6" % "provided",
   "commons-io"        % "commons-io"    % "2.4",
   "org.apache.spark" %% "spark-core"    % "1.2.0" % "provided",
   "org.apache.spark" %% "spark-mllib"   % "1.2.0" % "provided",