diff --git a/build.sbt b/build.sbt
index f2303d7..b1cc2ae 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,6 +1,6 @@
 import sbt.Project.projectToLocalProject
 
-val mainScala = "2.13.7"
+val mainScala = "2.13.13"
 val allScala  = Seq("2.12.15", mainScala)
 
 val zioVersion  = "2.0.0"