diff --git a/Cargo.toml b/Cargo.toml
index 8bddad1..113f5a2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,6 +2,7 @@
 name = "rpcudp-rs"
 version = "0.1.0"
 edition = "2021"
+rust-version = "1.75.0"
 
 [features]
 default = ["async-std"]