diff --git a/.gitignore b/.gitignore
index 2ddf5f2..64fa18b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
 manifest.json
+target/
+pio.log
diff --git a/build.sbt b/build.sbt
index d51afe2..fb84e44 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")