diff --git a/build.sbt b/build.sbt
index 5b1a71a..35aa90e 100644
--- a/build.sbt
+++ b/build.sbt
@@ -21,7 +21,7 @@ val mainDev =
     new java.net.URL("http://github.com/kailuowang")
   )
 
-lazy val libs = org.typelevel.libraries.add("cats-effect", "3.5.2")
+lazy val libs = org.typelevel.libraries.add("cats-effect", "3.5.5")
 
 lazy val mau = project
   .in(file("."))