diff --git a/build.sbt b/build.sbt
index d7770dc..3e32f1e 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,7 +1,7 @@
 ThisBuild / organization := "io.latis-data"
 ThisBuild / scalaVersion := "2.13.12"
 
-val fs2DataVersion = "1.8.1"
+val fs2DataVersion = "1.9.1"
 val http4sVersion = "0.23.23"
 val latisVersion = "ea2ab6c"
 val latisHapiVersion = "e30933f"