diff --git a/README.md b/README.md
index f7c2eef..0f735b4 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,8 @@ The latest published plugin version is: [![Download](https://api.bintray.com/pac
 
 | Plugin version                   | JMH version & other information       | 
 | -------------------------------- |:-------------------------------------:| 
-| `0.3.3`  (sbt 13.16 / sbt 1.0)   | `1.19`, JMH bugfix release            |
+| `0.3.4`  (sbt 13.17 / sbt 1.1.4) | `1.21`, support of GraalVM            |
+| `0.3.3`  (sbt 13.17 / sbt 1.1.1) | `1.20`, JMH bugfix release            |
 | `0.3.2`  (sbt 13.16 / sbt 1.0)   | `1.19`, minor bugfix release          |
 | `0.3.1`  (sbt 13.16 / sbt 1.0)   | `1.19`, minor bugfix release          |
 | `0.3.0`  (sbt 13.16 / sbt 1.0)   | `1.19`, async profiler, flame-graphs  |
@@ -42,7 +43,7 @@ your project is to add the below line to your `project/plugins.sbt` file:
 
 ```scala
 // project/plugins.sbt
-addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.3.3")
+addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.3.4")
 ```
 
 and enable it in the projects where you want to (useful in multi-project builds, as you can enable it only where you need it):
diff --git a/build.sbt b/build.sbt
index d95e348..279945b 100644
--- a/build.sbt
+++ b/build.sbt
@@ -13,7 +13,7 @@ val jmhVersion = {
 val commonSettings = Seq(
   organization := "pl.project13.scala",
 
-  crossSbtVersions := Vector("0.13.17", "1.1.1"),
+  crossSbtVersions := Vector("0.13.17", "1.1.4"),
 
   scalacOptions ++= List(
     "-unchecked",
@@ -110,7 +110,7 @@ lazy val extras = project
   .settings(sonatypeSettings: _*)
   .settings(
     name := "sbt-jmh-extras",
-    scalaVersion := "2.12.2",
+    scalaVersion := "2.12.6",
     autoScalaLibrary := false, // it is plain Java
     crossPaths := false // it is plain Java
   )
diff --git a/plugin/src/main/resources/sbt-jmh.properties b/plugin/src/main/resources/sbt-jmh.properties
index 5c055a5..9f5c6d9 100644
--- a/plugin/src/main/resources/sbt-jmh.properties
+++ b/plugin/src/main/resources/sbt-jmh.properties
@@ -1,2 +1,2 @@
-jmh.version=1.20
-extras.version=0.3.3
+jmh.version=1.21
+extras.version=0.3.4-SNAPSHOT
diff --git a/sbt-jmh-tester/build.sbt b/sbt-jmh-tester/build.sbt
index 62dca9a..3466fd7 100644
--- a/sbt-jmh-tester/build.sbt
+++ b/sbt-jmh-tester/build.sbt
@@ -1,3 +1,3 @@
-scalaVersion := "2.12.2"
+scalaVersion := "2.12.6"
 
 enablePlugins(JmhPlugin)
diff --git a/version.sbt b/version.sbt
index 0d3bc31..dfd7e19 100644
--- a/version.sbt
+++ b/version.sbt
@@ -1 +1 @@
-version in ThisBuild := "0.3.3"
+version in ThisBuild := "0.3.4-SNAPSHOT"