diff --git a/build.sbt b/build.sbt
index e7f8c8d..aaaa78a 100644
--- a/build.sbt
+++ b/build.sbt
@@ -95,7 +95,7 @@ Global / fileServicePort := {
   } yield port).unsafeRunSync()
 }
 
-val catsEffectVersion = "3.6.1"
+val catsEffectVersion = "3.6.3"
 val fs2Version = "3.12.0"
 val http4sVersion = buildinfo.BuildInfo.http4sVersion // share version with build project
 val scalaJSDomVersion = "2.8.0"