diff --git a/Cargo.toml b/Cargo.toml
index 567897a..4d9f0f0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ name = "cpp_demangle"
 crate-type = ["cdylib"]
 
 [dependencies]
-cpp_demangle = "0.4.0"
+cpp_demangle = "0.5.1"
 
 [dependencies.pyo3]
 version = "0.17.3"