diff --git a/build.sbt b/build.sbt
index 16095cc..b9a5a1b 100644
--- a/build.sbt
+++ b/build.sbt
@@ -31,7 +31,7 @@ val scalameterVersion = "0.19"
 val scalatestVersion = "3.2.17"
 val scalatestPlusVersion = "3.2.17.0"
 
-scalaVersion := "2.12.18"
+scalaVersion := "2.13.12"
 scalacOptions ++= Seq(
   "-target:jvm-1.8",
   "-deprecation",
diff --git a/src/main/scala/com/spotify/bdrc/scala/Collections.scala b/src/main/scala/com/spotify/bdrc/scala/Collections.scala
index 68b27d0..8f9c707 100644
--- a/src/main/scala/com/spotify/bdrc/scala/Collections.scala
+++ b/src/main/scala/com/spotify/bdrc/scala/Collections.scala
@@ -64,7 +64,7 @@ object Collections {
     b.result()
 
     // Use implicits to automatically build for the target collection type Map[String, Int]
-    val m: Map[String, Int] = l.map(x => "key" + x -> x)(scala.collection.breakOut)
+    val m: Map[String, Int] = l.iterator.map(x => "key" + x -> x).toMap
   }
 
 }