diff --git a/README.md b/README.md
index f2bf6ef..0c7fb82 100644
--- a/README.md
+++ b/README.md
@@ -14,12 +14,12 @@ If ScalaTest has saved you time, helped you ship better software, or become a ke
 
 **Usage**
 
-To use it for ScalaTest 3.2.19 and JMock 2.13.x: 
+To use it for ScalaTest 3.3.0.0-RC1 and JMock 2.13.x: 
 
 SBT: 
 
 ```
-libraryDependencies += "org.scalatestplus" %% "jmock-2-13" % "3.2.19.0" % "test"
+libraryDependencies += "org.scalatestplus" %% "jmock-2-13" % "3.3.0.0-RC1" % "test"
 ```
 
 Maven: 
@@ -28,7 +28,7 @@ Maven:
 <dependency>
   <groupId>org.scalatestplus</groupId>
   <artifactId>jmock-2-13_3</artifactId>
-  <version>3.2.19.0</version>
+  <version>3.3.0.0-RC1</version>
   <scope>test</scope>
 </dependency>
 ```
@@ -39,4 +39,5 @@ Please use the following commands to publish to Sonatype:
 
 ```
 $ sbt +publishSigned
+$ sbt sonaUpload
 ```
\ No newline at end of file
diff --git a/build.sbt b/build.sbt
index 86dd714..750509c 100644
--- a/build.sbt
+++ b/build.sbt
@@ -5,7 +5,7 @@ name := "jmock-2.13"
 
 organization := "org.scalatestplus"
 
-version := "3.2.19.0"
+version := "3.3.0.0-RC1"
 
 homepage := Some(url("https://github.com/scalatest/scalatestplus-jmock"))
 
@@ -26,17 +26,17 @@ developers := List(
   )
 )
 
-scalaVersion := "2.13.13"
+scalaVersion := "2.13.16"
 
-crossScalaVersions := List("2.11.12", "2.12.19", "2.13.13", "3.3.3")
+crossScalaVersions := List("2.11.12", "2.12.20", "2.13.16", "3.3.6")
 
 libraryDependencies ++= Seq(
   "org.jmock" % "jmock-legacy" % "2.13.1",
-  "org.scalatest" %% "scalatest-core" % "3.2.19", 
-  "org.scalatest" %% "scalatest-flatspec" % "3.2.19" % "test", 
-  "org.scalatest" %% "scalatest-funsuite" % "3.2.19" % "test", 
-  "org.scalatest" %% "scalatest-funspec" % "3.2.19" % "test", 
-  "org.scalatest" %% "scalatest-shouldmatchers" % "3.2.19" % "test"
+  "org.scalatest" %% "scalatest-core" % "3.3.0-RC1", 
+  "org.scalatest" %% "scalatest-flatspec" % "3.3.0-RC1" % "test", 
+  "org.scalatest" %% "scalatest-funsuite" % "3.3.0-RC1" % "test", 
+  "org.scalatest" %% "scalatest-funspec" % "3.3.0-RC1" % "test", 
+  "org.scalatest" %% "scalatest-shouldmatchers" % "3.3.0-RC1" % "test"
 )
 
 enablePlugins(SbtOsgi)
@@ -61,10 +61,7 @@ OsgiKeys.additionalHeaders:= Map(
   "Bundle-Vendor" -> "Artima, Inc."
 )
 
-publishTo := {
-  val nexus = "https://oss.sonatype.org/"
-  Some("publish-releases" at nexus + "service/local/staging/deploy/maven2")
-}
+publishTo := localStaging.value
 
 publishMavenStyle := true
 
diff --git a/project/build.properties b/project/build.properties
index e64c208..489e0a7 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.5.8
+sbt.version=1.11.4