diff --git a/bon-macros/Cargo.toml b/bon-macros/Cargo.toml
index a617dac0..0a6d054e 100644
--- a/bon-macros/Cargo.toml
+++ b/bon-macros/Cargo.toml
@@ -58,7 +58,7 @@ quote = "1"
 syn = { version = "2.0.56", features = ["full", "visit-mut", "visit"] }
 
 prettyplease = "0.2"
-rustversion  = "1.0"
+rustversion  = "1.0.18"
 
 [features]
 default = []