diff --git a/build.sbt b/build.sbt
index 04688520..c017eb89 100644
--- a/build.sbt
+++ b/build.sbt
@@ -137,4 +137,4 @@ scalacOptions += "-Ypartial-unification"
 
 organization in ThisBuild := "com.thoughtworks.deeplearning"
 
-crossScalaVersions in Global := Seq("2.11.12", "2.12.4")
+crossScalaVersions in Global := Seq("2.11.12", "2.12.19")