diff --git a/build.sbt b/build.sbt
index 8563d92..8865c5f 100644
--- a/build.sbt
+++ b/build.sbt
@@ -70,7 +70,7 @@ addCommandAlias("testWithCoverage", "; clean; coverage; test; coverageReport;")
 
 // -- Lib versions
 val zio          = "2.1.13"
-val zioPrelude   = "1.0.0-RC35"
+val zioPrelude   = "1.0.0-RC40"
 val circe        = "0.14.4"
 val sttp         = "3.10.1"
 val magnolia     = "1.1.10"