diff --git a/build.sc b/build.sc
index 96f8caab..7e76535d 100644
--- a/build.sc
+++ b/build.sc
@@ -2,7 +2,7 @@ import mill._
 import mill.scalalib._
 import mill.scalalib.publish._
 
-val ScalaVersions = Seq("2.12.18", "2.13.12")
+val ScalaVersions = Seq("2.12.18", "2.13.13")
 
 object library {