diff --git a/Cargo.toml b/Cargo.toml
index bc50cf1..12bce3c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -34,7 +34,7 @@ hyper = { version = "0.14", features = ["server", "tcp"], optional = true }
 once_cell = { version = "1", features = ["parking_lot"] }
 openssl = "0.10"
 parking_lot = "0.12"
-rcgen = { version = "0.10", default-features = false, optional = true }
+rcgen = { version = "0.11", default-features = false, optional = true }
 reqwest = { version = "0.11", default-features = false, features = ["json", "native-tls"] }
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"