diff --git a/Sources/DiscogsService/Public/Enumerations/AuthMethod.swift b/Sources/DiscogsService/Public/Enumerations/AuthMethod.swift
index 8f7fbf154..e33ca41d9 100644
--- a/Sources/DiscogsService/Public/Enumerations/AuthMethod.swift
+++ b/Sources/DiscogsService/Public/Enumerations/AuthMethod.swift
@@ -23,7 +23,7 @@
 /// Personal access token | 🐰 High tier | ✔️ Yes | ✔️ Yes, for token holder only 👩
 ///
 /// Please refer to the [Discogs documentation](https://www.discogs.com/developers#page:authentication,header:authentication-discogs-auth-flow) for further details.
-public enum AuthMethod {
+public enum AuthMethod: Equatable, Sendable {
     /// A consumer key and secret that allows access to endpoints that requires authentication.
     case consumer(key: String, secret: String)
     /// No authentication method defined.
diff --git a/Sources/DiscogsService/Public/Enumerations/AuthTransport.swift b/Sources/DiscogsService/Public/Enumerations/AuthTransport.swift
index 6a90a1f0b..5e3e67b25 100644
--- a/Sources/DiscogsService/Public/Enumerations/AuthTransport.swift
+++ b/Sources/DiscogsService/Public/Enumerations/AuthTransport.swift
@@ -13,7 +13,7 @@
 // ===----------------------------------------------------------------------===
 
 /// A representation of the available transport options to send credentials in authenticated requests.
-public enum AuthTransport {
+public enum AuthTransport: Sendable {
     /// Authentication credential are sent in a request as an `Authentication` header.
     ///
     /// This means that the header will be added to any existing header in a request, like this: