diff --git a/examples/hello_world_tls/Cargo.toml b/examples/hello_world_tls/Cargo.toml
index 4532d052..b9daafa1 100644
--- a/examples/hello_world_tls/Cargo.toml
+++ b/examples/hello_world_tls/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2018"
 
 [dependencies]
 gotham = { path = "../../gotham", features = ["rustls"] }
-rustls-pemfile = "1.0"
+rustls-pemfile = "2.1"