diff --git a/build.sbt b/build.sbt
index 3dee7f6..8f53a05 100644
--- a/build.sbt
+++ b/build.sbt
@@ -3,7 +3,7 @@ ThisBuild / organization := "com.github.sbt"
 lazy val protobuf = "com.google.protobuf" % "protobuf-java" % "3.25.5" % Runtime // for scala-steward
 lazy val grpc = "io.grpc" % "protoc-gen-grpc-java" % "1.62.2" % Runtime // for scala-steward
 
-def scala212 = "2.12.20"
+def scala212 = "2.13.15"
 
 lazy val root = (project in file("."))
   .enablePlugins(SbtPlugin)