diff --git a/codegen/Cargo.toml b/codegen/Cargo.toml
index 34008654..df705eb1 100644
--- a/codegen/Cargo.toml
+++ b/codegen/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rhai_codegen"
-version = "0.4.1"
+version = "1.0.0"
 edition = "2018"
 authors = ["jhwgh1968", "Stephen Chung"]
 description = "Procedural macros support package for Rhai, a scripting language and engine for Rust"
@@ -16,7 +16,7 @@ default = []
 metadata = []
 
 [dev-dependencies]
-rhai = { path = "..", version = ">=0.20.3" }
+rhai = { path = "..", version = "1.0" }
 trybuild = "1"
 
 [dependencies]