diff --git a/build.sbt b/build.sbt
index 71201db..02f3881 100644
--- a/build.sbt
+++ b/build.sbt
@@ -7,7 +7,7 @@ val scala2_12 = "2.12.11"
 val scala2_13 = "2.13.3"
 val scala3 = "0.26.0-RC1"
 
-val sttpModelVersion = "1.2.0-RC3"
+val sttpModelVersion = "1.2.0-RC4"
 
 val scalaTestVersion = "3.2.2"
 val scalaNativeTestInterfaceVersion = "0.4.0-M2"