diff --git a/build.sbt b/build.sbt
index feaa233..2969b78 100644
--- a/build.sbt
+++ b/build.sbt
@@ -34,7 +34,7 @@ lazy val Versions = new {
 
   val cats = new {
     val core = "2.12.0"
-    val effect = "3.5.5"
+    val effect = "3.5.6"
   }
 
   val circe = "0.14.10"