diff --git a/build.sbt b/build.sbt
index e2616c9..6561210 100644
--- a/build.sbt
+++ b/build.sbt
@@ -27,7 +27,7 @@ ThisBuild / crossScalaVersions := Seq(Scala213, "3.3.1")
 ThisBuild / scalaVersion := Scala213 // the default Scala
 
 val catsV = "2.10.0"
-val catsEffectV = "3.5.2"
+val catsEffectV = "3.5.3"
 val fs2V = "3.9.3"
 val luceneV = "9.9.1"
 val munitCatsEffectV = "2.0.0-M4"