diff --git a/.travis.yml b/.travis.yml
index 888191b..bd33e26 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,7 @@ sudo: false
 language: scala
 
 scala:
+  - 2.13.0-M5
   - 2.12.8
   - 2.11.12
 
@@ -21,8 +22,8 @@ install:
 
 script:
   - sbt ++$TRAVIS_SCALA_VERSION test
-  - sbt ++$TRAVIS_SCALA_VERSION mimaReportBinaryIssues
-  - sbt ++$TRAVIS_SCALA_VERSION docs/makeMicrosite
+  - test $TRAVIS_SCALA_VERSION == "2.13.0-M5" || sbt ++$TRAVIS_SCALA_VERSION mimaReportBinaryIssues
+  - test $TRAVIS_SCALA_VERSION == "2.13.0-M5" || sbt ++$TRAVIS_SCALA_VERSION docs/makeMicrosite
 
 after_success:
   - test $TRAVIS_PULL_REQUEST == "false" && test $TRAVIS_BRANCH == "master" && test $TRAVIS_REPO_SLUG == "ChristopherDavenport/circuit" && sbt ++$TRAVIS_SCALA_VERSION publish
diff --git a/build.sbt b/build.sbt
index 5434737..b9dd34a 100644
--- a/build.sbt
+++ b/build.sbt
@@ -2,7 +2,7 @@ import sbtcrossproject.CrossPlugin.autoImport.{crossProject, CrossType}
 
 lazy val `circuit` = project.in(file("."))
   .settings(commonSettings, releaseSettings, skipOnPublishSettings)
-  .aggregate(core, docs)
+  .aggregate(core)
 
 lazy val core = project.in(file("core"))
   .settings(commonSettings, releaseSettings, mimaSettings)
@@ -26,12 +26,30 @@ val catsEffectV = "1.2.0"
 val kindProjectorV = "0.9.9"
 val betterMonadicForV = "0.3.0-M4"
 
+val scalaTestV = Def.setting{
+  CrossVersion.partialVersion(scalaVersion.value) match {
+    case Some((2, v)) if v <= 12 =>
+      "3.0.5"
+    case _ =>
+      "3.0.6-SNAP5"
+  }
+}
+
+val scalaCheckV = Def.setting{
+  CrossVersion.partialVersion(scalaVersion.value) match {
+    case Some((2, v)) if v <= 12 =>
+      "1.13.5"
+    case _ =>
+      "1.14.0"
+  }
+}
+
 // General Settings
 lazy val commonSettings = Seq(
   organization := "io.chrisdavenport",
 
   scalaVersion := "2.12.8",
-  crossScalaVersions := Seq(scalaVersion.value, "2.11.12"),
+  crossScalaVersions := Seq("2.13.0-M5", scalaVersion.value, "2.11.12"),
   scalacOptions += "-Yrangepos",
 
   scalacOptions in (Compile, doc) ++= Seq(
@@ -45,7 +63,7 @@ lazy val commonSettings = Seq(
   libraryDependencies ++= Seq(
     "org.typelevel"               %% "cats-core"                  % catsV,
     "org.typelevel"               %% "cats-effect"                % catsEffectV,
-    "org.scalatest"               %% "scalatest"                  % "3.0.5" % Test
+    "org.scalatest"               %% "scalatest"                  % scalaTestV.value % Test
   )
 )