Update dependency org.scalatest:scalatest to v3.2.18

build.sbt

@@ -37,7 +37,7 @@ lazy val root = (project in file("."))
 
 lazy val dependencies =
   new {
-    val scalatestVersion = "3.2.17"
+    val scalatestVersion = "3.2.18"
     val scalatest = "org.scalatest" %% "scalatest" % scalatestVersion
   }