diff --git a/Cargo.toml b/Cargo.toml
index 6f1e187..b843e65 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,6 +4,7 @@ description = "Utilities for parsing, comparing, and manipulating version number
 repository = "https://github.com/zharinov/verver"
 version = "0.0.1"
 edition = "2021"
+rust-version = "1.65.0"
 license = "MIT"
 
 [dependencies]