diff --git a/Cargo.toml b/Cargo.toml
index 8d7be6f..d5ee5d5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -126,7 +126,7 @@ features = ["v4"]
 
 [dependencies.xsalsa20poly1305]
 optional = true
-version = "0.6"
+version = "0.7"
 
 [dev-dependencies]
 criterion = "0.3"
diff --git a/src/driver/connection/mod.rs b/src/driver/connection/mod.rs
index 85922a5..18c60ce 100644
--- a/src/driver/connection/mod.rs
+++ b/src/driver/connection/mod.rs
@@ -319,7 +319,7 @@ async fn init_cipher(client: &mut WsStream, mode: CryptoMode) -> Result<Cipher>
                     return Err(Error::CryptoModeInvalid);
                 }
 
-                return Ok(Cipher::new_varkey(&desc.secret_key)?);
+                return Ok(Cipher::new_from_slice(&desc.secret_key)?);
             },
             other => {
                 debug!(