diff --git a/CHANGELOG.md b/CHANGELOG.md
index 953f9937..9665e6e4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 9.22.0
+
+* Add support for the `Ghost` user when the Github user is deleted.
+
 ## 9.21.0
 
 * Update MiscService.getApiStatus() to use the v2 API
diff --git a/lib/src/common/model/pulls.dart b/lib/src/common/model/pulls.dart
index cdbf6ed8..2cb10a8e 100644
--- a/lib/src/common/model/pulls.dart
+++ b/lib/src/common/model/pulls.dart
@@ -311,14 +311,14 @@ class PullRequestFile {
 class PullRequestReview {
   PullRequestReview(
       {required this.id,
-      required this.user,
+      this.user,
       this.body,
       this.state,
       this.htmlUrl,
       this.pullRequestUrl});
 
   int id;
-  User user;
+  User? user;
   String? body;
   String? state;
   String? htmlUrl;
diff --git a/lib/src/common/model/pulls.g.dart b/lib/src/common/model/pulls.g.dart
index dfe3a3b3..cf370e22 100644
--- a/lib/src/common/model/pulls.g.dart
+++ b/lib/src/common/model/pulls.g.dart
@@ -253,7 +253,9 @@ Map<String, dynamic> _$PullRequestFileToJson(PullRequestFile instance) =>
 PullRequestReview _$PullRequestReviewFromJson(Map<String, dynamic> json) =>
     PullRequestReview(
       id: json['id'] as int,
-      user: User.fromJson(json['user'] as Map<String, dynamic>),
+      user: json['user'] == null
+          ? null
+          : User.fromJson(json['user'] as Map<String, dynamic>),
       body: json['body'] as String?,
       state: json['state'] as String?,
       htmlUrl: json['html_url'] as String?,
diff --git a/pubspec.yaml b/pubspec.yaml
index 0251b7c7..af2ff765 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: github
-version: 9.21.0
+version: 9.22.0
 description: A high-level GitHub API Client Library that uses Github's v3 API
 homepage: https://github.com/SpinlockLabs/github.dart