diff --git a/build.sbt b/build.sbt
index 2f2a01b..a6fb083 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,14 +1,14 @@
 import sbtcrossproject.CrossPlugin.autoImport.{crossProject, CrossType}
 
-val catsV = "2.0.0"
+val catsV = "2.1.0"
 val catsEffectV = "2.0.0"
 val shapelessV = "2.3.3"
-val fs2V = "2.0.0"
-val http4sV = "0.21.0-M6"
-val circeV = "0.12.3"
+val fs2V = "2.2.1"
+val http4sV = "0.21.0-RC2"
+val circeV = "0.13.0-RC1"
 val doobieV = "0.8.8"
 val log4catsV = "1.0.1"
-val specs2V = "4.8.1"
+val specs2V = "4.8.3"
 
 val mulesV = "0.4.0-M1"
 
@@ -122,4 +122,4 @@ inThisBuild(List(
       "-sourcepath", (baseDirectory in LocalRootProject).value.getAbsolutePath,
       "-doc-source-url", "https://github.com/ChristopherDavenport/mules-http4s/blob/v" + version.value + "€{FILE_PATH}.scala"
   )
-))
\ No newline at end of file
+))