diff --git a/build.sbt b/build.sbt
index 2ecfbe82b7..ed28b23c2d 100644
--- a/build.sbt
+++ b/build.sbt
@@ -2,7 +2,7 @@ import sbtcrossproject.CrossPlugin.autoImport.{ crossProject, CrossType }
 
 val mainScala       = "2.12.10"
 val allScala        = Seq("2.13.1", mainScala)
-val http4sVersion   = "0.21.0-RC5"
+val http4sVersion   = "0.21.0"
 val silencerVersion = "1.4.4"
 inThisBuild(
   List(