diff --git a/Cargo.toml b/Cargo.toml
index 6a29c84..1f76802 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,5 +7,5 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-num = "0.2.1"
+num = "0.3.0"
 assert_approx_eq = "1.1.0"