diff --git a/build.sbt b/build.sbt
index 3641dfed..7de7222b 100644
--- a/build.sbt
+++ b/build.sbt
@@ -4,7 +4,7 @@ enablePlugins(ScalaJSBundlerPlugin)
 
 libraryDependencies ++= Seq(
   "org.scala-js" %%% "scalajs-dom" % "1.1.0",
-  "app.tulz" %%% "tuplez-full-light" % "0.3.1",
+  "app.tulz" %%% "tuplez-full-light" % "0.3.3",
   "org.scalatest" %%% "scalatest" % "3.2.0" % Test
 )
 
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 0e5dce8e..cff33966 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,6 +1,6 @@
 logLevel := Level.Warn
 
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.1.0")
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.3.1")
 
 addSbtPlugin("ch.epfl.scala" % "sbt-scalajs-bundler" % "0.18.0")
 
diff --git a/src/test/scala/com/raquo/airstream/timing/SyncDelayEventStreamSpec.scala b/src/test/scala/com/raquo/airstream/timing/SyncDelayEventStreamSpec.scala
index 1b3822b7..1680e440 100644
--- a/src/test/scala/com/raquo/airstream/timing/SyncDelayEventStreamSpec.scala
+++ b/src/test/scala/com/raquo/airstream/timing/SyncDelayEventStreamSpec.scala
@@ -2,7 +2,6 @@ package com.raquo.airstream.timing
 
 import com.raquo.airstream.UnitSpec
 import com.raquo.airstream.core.Observer
-import com.raquo.airstream.debug.Debugger
 import com.raquo.airstream.fixtures.{Calculation, Effect, TestableOwner}
 import com.raquo.airstream.state.Var