diff --git a/project/build.properties b/project/build.properties
index b71cb66..40b3b8e 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.9.0-RC3
+sbt.version=1.9.0
diff --git a/src/main/scala/interplay/Versions.scala b/src/main/scala/interplay/Versions.scala
index e6b0cd2..2f858b0 100644
--- a/src/main/scala/interplay/Versions.scala
+++ b/src/main/scala/interplay/Versions.scala
@@ -1,11 +1,11 @@
 package interplay
 
 object ScalaVersions {
-  val scala212 = "2.12.18-M2"
-  val scala213 = "2.13.11-M2"
+  val scala212 = "2.12.18"
+  val scala213 = "2.13.11"
   val scala3   = "3.3.0"
 }
 
 object SbtVersions {
-  val sbt19 = "1.9.0-RC3"
+  val sbt19 = "1.9.0"
 }