diff --git a/Cargo.toml b/Cargo.toml
index 240f207..dd15fba 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,6 +3,7 @@ name = "public-ip"
 version = "0.2.1"
 authors = ["avitex <avitex@wfxlabs.com>"]
 edition = "2018"
+rust-version = "1.52.0"
 description = "Find the public IP address of a device"
 documentation = "https://docs.rs/public-ip"
 homepage = "https://github.com/avitex/rust-public-ip"