diff --git a/Cargo.toml b/Cargo.toml
index 27817cc..2533854 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "jsonwebtoken"
-version = "2.0.0"
+version = "2.0.1"
 authors = ["Vincent Prouillet <vincent@wearewizards.io>"]
 license = "MIT"
 readme = "README.md"
@@ -14,7 +14,7 @@ error-chain = { version = "0.10", default-features = false }
 serde_json = "1.0"
 serde_derive = "1.0"
 serde = "1.0"
-ring = { version = "0.7", features = ["rsa_signing", "dev_urandom_fallback"] }
+ring = { version = "0.9.4", features = ["rsa_signing", "dev_urandom_fallback"] }
 base64 = "0.5"
-untrusted = "0.3"
+untrusted = "0.5"
 chrono = "0.3"
diff --git a/src/crypto.rs b/src/crypto.rs
index 302c01d..fdd89c6 100644
--- a/src/crypto.rs
+++ b/src/crypto.rs
@@ -32,7 +32,7 @@ fn sign_hmac(alg: &'static digest::Algorithm, key: &[u8], signing_input: &str) -
     let digest = hmac::sign(&signing_key, signing_input.as_bytes());
 
     Ok(
-        base64::encode_config::<digest::Digest>(&digest, base64::URL_SAFE_NO_PAD)
+        base64::encode_config::<hmac::Signature>(&digest, base64::URL_SAFE_NO_PAD)
     )
 }