diff --git a/Sources/Gravatar/Network/Services/ProfileService.swift b/Sources/Gravatar/Network/Services/ProfileService.swift
index 1aaa61df..a9ddbe1c 100644
--- a/Sources/Gravatar/Network/Services/ProfileService.swift
+++ b/Sources/Gravatar/Network/Services/ProfileService.swift
@@ -31,7 +31,7 @@ public struct ProfileService: ProfileFetching, Sendable {
 
     package func fetchAvatars(with token: String, id: ProfileIdentifier) async throws -> [Avatar] {
         do {
-            guard let url = avatarsBaseURLComponents.settingQueryItems([.init(name: "selected_email", value: id.id)]).url else {
+            guard let url = avatarsBaseURLComponents.settingQueryItems([.init(name: "selected_email_hash", value: id.id)]).url else {
                 throw APIError.requestError(reason: .urlInitializationFailed)
             }
             let request = URLRequest(url: url).settingAuthorizationHeaderField(with: token)
diff --git a/Sources/Gravatar/OpenApi/Generated/ModelError.swift b/Sources/Gravatar/OpenApi/Generated/ModelError.swift
index 13562faf..d2e69a33 100644
--- a/Sources/Gravatar/OpenApi/Generated/ModelError.swift
+++ b/Sources/Gravatar/OpenApi/Generated/ModelError.swift
@@ -1,5 +1,7 @@
 import Foundation
 
+/// An error response from the API.
+///
 public struct ModelError: Codable, Hashable, Sendable {
     /// The error message
     public private(set) var error: String
diff --git a/openapi/spec.yaml b/openapi/spec.yaml
index 8296e914..5af4966c 100644
--- a/openapi/spec.yaml
+++ b/openapi/spec.yaml
@@ -49,6 +49,7 @@ components:
         image_url:
           type: string
           description: Image URL
+          format: uri
           examples:
             - >-
               https://gravatar.com/userimage/252014526/d38bele5a98a2bbc40df69172a2a8348.jpeg
@@ -450,6 +451,7 @@ components:
             - '2021-10-01T12:00:00Z'
     Error:
       type: object
+      description: An error response from the API.
       properties:
         error:
           type: string
@@ -571,12 +573,12 @@ paths:
       security:
         - oauth: []
       parameters:
-        - name: selected_email
+        - name: selected_email_hash
           in: query
           description: >-
-            The email address used to determine which avatar is selected. The
-            'selected' attribute in the avatar list will be set to 'true' for
-            the avatar associated with this email.
+            The sha256 hash of the email address used to determine which avatar
+            is selected. The 'selected' attribute in the avatar list will be set
+            to 'true' for the avatar associated with this email.
           schema:
             type: string
             default: null
@@ -667,4 +669,3 @@ paths:
       responses:
         '204':
           description: Avatar successfully set
-