diff --git a/build.sbt b/build.sbt
index c3d4a337..3be3036c 100644
--- a/build.sbt
+++ b/build.sbt
@@ -37,7 +37,7 @@ val ZIOInteropCatsVersion = "23.1.0.5"
 
 lazy val commonScalaVersionSettings = Seq(
   scalaVersion := ScalaVersion,
-  crossScalaVersions := Seq("2.12.20", "2.13.16", ScalaVersion)
+  crossScalaVersions := Seq("2.12.21", "2.13.16", ScalaVersion)
 )
 
 lazy val warnUnusedImport = Seq(