Fix core dependency
diff --git a/build.sbt b/build.sbt
index bb1b383..62d4b72 100644
--- a/build.sbt
+++ b/build.sbt
@@ -7,6 +7,6 @@
 organization := "io.prediction"
 
 libraryDependencies ++= Seq(
-  "io.prediction"    %% "core"          % "0.8.6-SNAPSHOT" % "provided",
+  "io.prediction"    %% "core"          % "0.8.6" % "provided",
   "org.apache.spark" %% "spark-core"    % "1.2.0" % "provided",
   "org.apache.spark" %% "spark-mllib"   % "1.2.0" % "provided")