diff --git a/build.mill b/build.mill
index 41c261f..3dac84a 100644
--- a/build.mill
+++ b/build.mill
@@ -7,7 +7,7 @@ import mill.scalalib.publish.*
 import mill.scalalib.scalafmt.*
 
 object Dependencies {
-  val scalaVersion = "2.13.16"
+  val scalaVersion = "2.13.18"
 
   val chiselVersion = "7.4.0"
   val chisel        = mvn"org.chipsalliance::chisel:$chiselVersion"