diff --git a/project/OmnidocBuild.scala b/project/OmnidocBuild.scala
index 5930b15..66a6105 100644
--- a/project/OmnidocBuild.scala
+++ b/project/OmnidocBuild.scala
@@ -19,9 +19,9 @@ object OmnidocBuild {
   val snapshotVersionLabel = "3.0.x"
 
   val playVersion              = sys.props.getOrElse("play.version",               "3.0.0-M3")
-  val scalaTestPlusPlayVersion = sys.props.getOrElse("scalatestplus-play.version", "6.0.0-RC2")
-  val playJsonVersion          = sys.props.getOrElse("play-json.version",          "2.10.1")
-  val playSlickVersion         = sys.props.getOrElse("play-slick.version",         "5.2.0-RC1")
+  val scalaTestPlusPlayVersion = sys.props.getOrElse("scalatestplus-play.version", "7.0.0-M1")
+  val playJsonVersion          = sys.props.getOrElse("play-json.version",          "3.0.0-M1")
+  val playSlickVersion         = sys.props.getOrElse("play-slick.version",         "6.0.0-M1")
   val maybeTwirlVersion        = sys.props.get("twirl.version")
 
   // List Play artifacts so that they can be added as dependencies