diff --git a/changelogs/1.9.0.md b/changelogs/1.9.0.md
new file mode 100644
index 00000000..4645df11
--- /dev/null
+++ b/changelogs/1.9.0.md
@@ -0,0 +1,5 @@
+## [1.9.0](https://github.com/Kevin-Lee/effectie/issues?utf8=%E2%9C%93&q=is%3Aissue+is%3Aclosed+milestone%3A%22milestone15%22) - 2021-02-21
+
+## Done
+* Upgrade Scala `2.13.3` to `2.13.4` (#191)
+* Support Scala `3.0.0-RC1` (#189)
diff --git a/project/ProjectInfo.scala b/project/ProjectInfo.scala
index 8cc8b363..597cf60f 100644
--- a/project/ProjectInfo.scala
+++ b/project/ProjectInfo.scala
@@ -3,7 +3,7 @@ import wartremover.WartRemover.autoImport.{Wart, Warts}
 object ProjectInfo {
   final case class ProjectName(projectName: String) extends AnyVal
 
-  val ProjectVersion: String = "1.8.1"
+  val ProjectVersion: String = "1.9.0"
 
   def commonWarts(scalaBinaryVersion: String): Seq[wartremover.Wart] = scalaBinaryVersion match {
     case "2.10" =>