diff --git a/build.sbt b/build.sbt
index 50d5526..f33dfa4 100644
--- a/build.sbt
+++ b/build.sbt
@@ -40,7 +40,8 @@ lazy val knockoutwhistweb = project.in(file("knockoutwhistweb"))
     libraryDependencies += "org.scalatestplus.play" %% "scalatestplus-play" % "7.0.2" % Test,
     libraryDependencies += "de.mkammerer" % "argon2-jvm" % "2.12",
     libraryDependencies += "com.auth0" % "java-jwt" % "4.3.0",
-    libraryDependencies += "com.github.ben-manes.caffeine" % "caffeine" % "3.2.2"
+    libraryDependencies += "com.github.ben-manes.caffeine" % "caffeine" % "3.2.2",
+    JsEngineKeys.engineType := JsEngineKeys.EngineType.Node
   )
 
 lazy val root = (project in file("."))