diff --git a/build.sbt b/build.sbt
index 436759d..8da73b8 100644
--- a/build.sbt
+++ b/build.sbt
@@ -6,7 +6,7 @@ ThisBuild / version      := "3.2.2"
 ThisBuild / organization := "org.purang.net"
 ThisBuild / scalaVersion := "3.2.2"
 
-ThisBuild / crossScalaVersions := Seq("3.2.2", "2.13.10")
+ThisBuild / crossScalaVersions := Seq("3.2.2", "2.13.18")
 ThisBuild / versionScheme      := Some("early-semver")
 
 ThisBuild / update / evictionWarningOptions := EvictionWarningOptions.empty