diff --git a/Cargo.toml b/Cargo.toml
index d2a5ecc..25fe0a0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,6 +2,7 @@
 name = "appit"
 version = "0.2.0"
 edition = "2021"
+rust-version = "1.70.0"
 description = "A math library specialized for 2d screen graphics."
 repository = "https://github.com/khonsulabs/appit"
 license = "MIT OR Apache-2.0"