diff --git a/yaserde_derive/Cargo.toml b/yaserde_derive/Cargo.toml
index 3401c89..1b242a5 100644
--- a/yaserde_derive/Cargo.toml
+++ b/yaserde_derive/Cargo.toml
@@ -12,7 +12,7 @@ readme = "../README.md"
 edition = "2018"
 
 [dependencies]
-heck = "0.4.0"
+heck = "0.5.0"
 syn = { version = "~1.0", features = ["visit", "extra-traits"] }
 proc-macro2 = "~1.0"
 quote = "~1.0"