diff --git a/build.sbt b/build.sbt
index 873f2d7a7..eae3b4e60 100644
--- a/build.sbt
+++ b/build.sbt
@@ -11,7 +11,7 @@ import Def.{setting => dep}
 
 // -- common setting --
 // 2.11 is needed for android app
-crossScalaVersions in ThisBuild := Seq("2.11.12", "2.12.8")
+crossScalaVersions in ThisBuild := Seq("2.11.12", "2.12.9")
 scalaVersion in ThisBuild := crossScalaVersions.value.last
 
 // Global / onChangedBuildSource := ReloadOnSourceChanges //TODO: reactivate for sbt-1.3.0
diff --git a/project/Deps.scala b/project/Deps.scala
index b62893fdc..b5cb5734f 100644
--- a/project/Deps.scala
+++ b/project/Deps.scala
@@ -51,7 +51,7 @@ object Deps {
   val d3v4 = dep("com.github.fdietze" %% "scala-js-d3v4" % "e9ce7a9")
   // val d3v4 = dep("com.github.fdietze" %%% "scala-js-d3v4" % "master-SNAPSHOT")
   val fontawesome = dep("com.github.grburst" % "scala-js-fontawesome" % "d673579a18")
-  val vectory = dep("com.github.fdietze" % "vectory" % "63430be")
+  val vectory = dep("com.github.fdietze.vectory" %%% "vectory" % "9c901a6")
   // val scalarx = dep("com.lihaoyi" %%% "scalarx" % "0.4.0")
   val scalarx = dep("com.github.fdietze.duality" %%% "scalarx" % "fc761c9")
   // val scalarx = dep("com.github.fdietze.duality" %%% "scalarx" % "94c6d80") // jitpack cannot handle the . in repo name scala.rx
@@ -85,7 +85,7 @@ object Deps {
     val core = dep("com.nrinaudo" %%% "kantan.csv" % version)
     val generic = dep("com.nrinaudo" %%% "kantan.csv-generic" % version)
   }
-  val flatland = dep("com.github.fdietze.flatland" %%% "flatland" % "2b169c4")
+  val flatland = dep("com.github.fdietze.flatland" %%% "flatland" % "caa2daa")
   val caseApp = dep("com.github.alexarchambault" %%% "case-app" % "2.0.0-M3")
 
   // graalvm