diff --git a/build.sbt b/build.sbt
index f71e190..5407afc 100644
--- a/build.sbt
+++ b/build.sbt
@@ -2,7 +2,7 @@ import scalapb.compiler.Version.scalapbVersion
 
 scalaVersion := "2.13.14"
 
-crossScalaVersions := Seq("2.12.19", "2.13.14", "3.4.3")
+crossScalaVersions := Seq("2.12.20", "2.13.14", "3.4.3")
 
 ThisBuild / organization := "com.thesamet.scalapb"