diff --git a/project/SparkBuild.scala b/project/SparkBuild.scala
index 0c2598ab35e8411b167b8d750c93e7a86b052023..947ac47f6bb6220bd9c099634a63211ae3ca1bd0 100644
--- a/project/SparkBuild.scala
+++ b/project/SparkBuild.scala
@@ -55,9 +55,6 @@ object SparkBuild extends Build {
     fork := true,
     javaOptions += "-Xmx1g",
 
-    // Only allow one test at a time, even across projects, since they run in the same JVM
-    concurrentRestrictions in Global += Tags.limit(Tags.Test, 1),
-
     // Shared between both core and streaming.
     resolvers ++= Seq("Akka Repository" at "http://repo.akka.io/releases/"),