diff --git a/.travis.yml b/.travis.yml
index 308d3ad..152bb24 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,7 +9,7 @@ jdk:
 
 matrix:
   include:
-    - env: SCALA_VERSION=2.11.8 SPARK_VERSION=2.4.4
+    - env: SCALA_VERSION=2.12.10 SPARK_VERSION=3.0.0
 
 install:
   - pip install --user pyspark==$SPARK_VERSION
diff --git a/build.sbt b/build.sbt
index ca29b1c..0516706 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,18 +1,18 @@
 import Dependencies._
 
-val defaultScalaVersion = "2.11.8"
+val defaultScalaVersion = "2.12.10"
 
 val scalaVer = sys.props.getOrElse("scala.version", defaultScalaVersion)
 
-val defaultSparkVersion = "2.4.4"
+val defaultSparkVersion = "3.0.0"
 
 val sparkVer = sys.props.getOrElse("spark.version", defaultSparkVersion)
 
 val components = Seq("streaming", "sql", "mllib")
 
-val shortDesc = "Bayesian filtering with Spark"
+val shortDesc = "Online latent state estimation with Apache Spark."
 
-val longDesc = """Model-parallel kalman and bayesian filtering with Apache Spark.
+val longDesc = """Online latent state estimation with Apache Spark.
                   |
                   |This library allows you to define model-parallel kalman & bayesian filters by leveraging arbitrary
                   |stateful transformation capabilities of Spark DataFrames. Supports both structured streaming and
@@ -20,7 +20,7 @@ val longDesc = """Model-parallel kalman and bayesian filtering with Apache Spark
 
 lazy val settings = Seq(
   scalaVersion := scalaVer,
-  version := "0.3.1",
+  version := "0.4.0-SNAPSHOT",
   organization := "com.github.ozancicek",
   organizationName := "ozancicek",
   sparkVersion := sparkVer,
@@ -59,7 +59,7 @@ credentials += Credentials(Path.userHome / ".ivy2" / ".sparkpackagescredentials"
 
 credentials += Credentials(Path.userHome / ".ivy2" / ".sonatypecredentials")
 
-spShortDescription := "Bayesian filtering with Spark"
+spShortDescription := "Online latent state estimation with Apache Spark."
 
 spDescription := shortDesc
 
diff --git a/python/requirements-all.txt b/python/requirements-all.txt
index f38dadf..2bcc5bd 100644
--- a/python/requirements-all.txt
+++ b/python/requirements-all.txt
@@ -1,2 +1,2 @@
-pyspark==2.4.4
+pyspark==3.0.0
 numpy>=1.7
diff --git a/setup.py b/setup.py
index 801f824..d81665a 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@
 from setuptools import setup
 
 
-VERSION = "0.3.1"
+VERSION = "0.4.0"
 
 with open("README.md") as f:
     long_description = f.read()