diff --git a/library/src/main/java/com/meisolsson/githubsdk/model/ClientErrorResponse.java b/library/src/main/java/com/meisolsson/githubsdk/model/ClientErrorResponse.java
index 9a0d740..4baa94c 100644
--- a/library/src/main/java/com/meisolsson/githubsdk/model/ClientErrorResponse.java
+++ b/library/src/main/java/com/meisolsson/githubsdk/model/ClientErrorResponse.java
@@ -58,6 +58,8 @@ public enum Reason {
             @Json(name = "invalid") Invalid,
             @Json(name = "already_exists") AlreadyExists,
             @Json(name = "too_large") TooLarge,
+            @Json(name = "not_available") NotAvailable,
+            @Json(name = "unprocessable") Unprocessable,
             @Json(name = "custom") Custom
         }