diff --git a/build.sbt b/build.sbt
index cf3aaf6d..f057c331 100644
--- a/build.sbt
+++ b/build.sbt
@@ -11,7 +11,7 @@ val V = new {
   val `cats-discipline`      = "1.5.1"
   val `discipline-munit`     = "1.0.9"
   val circe                  = "0.14.6"
-  val fs2                    = "3.9.3"
+  val fs2                    = "3.9.4"
   val jedis                  = "3.2.0"
   val `kind-projector`       = "0.13.2"
   val kittens                = "3.2.0"