diff --git a/build.sbt b/build.sbt
index 024a2316..b02a27a5 100644
--- a/build.sbt
+++ b/build.sbt
@@ -4,7 +4,7 @@ import Dependencies._
 import microsites.ExtraMdFileConfig
 
 ThisBuild / scalaVersion := "2.13.16"
-ThisBuild / crossScalaVersions := Seq("2.12.20", "2.13.16", "3.3.6")
+ThisBuild / crossScalaVersions := Seq("2.12.21", "2.13.16", "3.3.6")
 ThisBuild / evictionErrorLevel := Level.Info
 ThisBuild / mimaBaseVersion := "1.8.0"
 Test / parallelExecution := false