diff --git a/build.sbt b/build.sbt
index 689ae8e..66070f2 100644
--- a/build.sbt
+++ b/build.sbt
@@ -28,7 +28,7 @@ ThisBuild / scalaVersion := Scala213 // the default Scala
 
 val catsV = "2.10.0"
 val catsEffectV = "3.5.2"
-val fs2V = "3.9.2"
+val fs2V = "3.9.3"
 val luceneV = "9.8.0"
 val munitCatsEffectV = "2.0.0-M3"