diff --git a/build.sbt b/build.sbt
index 55db201..a6fb083 100644
--- a/build.sbt
+++ b/build.sbt
@@ -3,7 +3,7 @@ import sbtcrossproject.CrossPlugin.autoImport.{crossProject, CrossType}
 val catsV = "2.1.0"
 val catsEffectV = "2.0.0"
 val shapelessV = "2.3.3"
-val fs2V = "2.2.3"
+val fs2V = "2.2.1"
 val http4sV = "0.21.0-RC2"
 val circeV = "0.13.0-RC1"
 val doobieV = "0.8.8"