diff --git a/CHANGELOG.md b/CHANGELOG.md
index b3dab851..f7711fbf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,9 @@
   - **Docs:** Extend description of `Roles` field in `CreateUserPayload`, `PartialUpdateUserPayload`, `UpdateUserPayload` and `User` model
 - `authorization`: [v0.6.0](services/authorization/CHANGELOG.md#v060)
   - **Feature:** Add new methods for managing roles: `AddRole`, `DeleteRole`, `GetRole`, `UpdateRole`
+- `serverbackup`: [v1.2.0](services/serverbackup/CHANGELOG.md#v120)
+  - **Improvement:** Add new enums for backup status: `in-progress`, `error-restoring`, `error-deleting`
+  - **Improvement:** Add new enums for backup volume status: `error-deleting`
 
 ## Release (2025-12-08)
 - `scf`: [v0.3.0](services/scf/CHANGELOG.md#v030)
diff --git a/services/serverbackup/CHANGELOG.md b/services/serverbackup/CHANGELOG.md
index 1b6123b4..4762edfb 100644
--- a/services/serverbackup/CHANGELOG.md
+++ b/services/serverbackup/CHANGELOG.md
@@ -1,3 +1,7 @@
+## v1.2.0
+- **Improvement:** Extend backup status enums: `in-progress`, `error-restoring`, `error-deleting`
+- **Improvement:** Extend backup volume status enums: `error-deleting`
+
 ## v1.1.0
 - **Version**: Minimal version is now python 3.9
 
diff --git a/services/serverbackup/pyproject.toml b/services/serverbackup/pyproject.toml
index 47648685..a72e2b2a 100644
--- a/services/serverbackup/pyproject.toml
+++ b/services/serverbackup/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-serverbackup"
 
 [tool.poetry]
 name = "stackit-serverbackup"
-version = "v1.1.0"
+version = "v1.2.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
diff --git a/services/serverbackup/src/stackit/serverbackup/models/backup.py b/services/serverbackup/src/stackit/serverbackup/models/backup.py
index 3ef572f1..9eaa86ea 100644
--- a/services/serverbackup/src/stackit/serverbackup/models/backup.py
+++ b/services/serverbackup/src/stackit/serverbackup/models/backup.py
@@ -64,10 +64,13 @@ def status_validate_enum(cls, value):
                 "backing up",
                 "inconsistent",
                 "error-creating",
+                "in-progress",
+                "error-restoring",
+                "error-deleting",
             ]
         ):
             raise ValueError(
-                "must be one of enum values ('creating', 'available', 'deleting', 'error', 'restoring', 'error_deleting', 'backing up', 'inconsistent', 'error-creating')"
+                "must be one of enum values ('creating', 'available', 'deleting', 'error', 'restoring', 'error_deleting', 'backing up', 'inconsistent', 'error-creating', 'in-progress', 'error-restoring', 'error-deleting')"
             )
         return value
 
diff --git a/services/serverbackup/src/stackit/serverbackup/models/backup_volume_backups_inner.py b/services/serverbackup/src/stackit/serverbackup/models/backup_volume_backups_inner.py
index aa5d2211..34144233 100644
--- a/services/serverbackup/src/stackit/serverbackup/models/backup_volume_backups_inner.py
+++ b/services/serverbackup/src/stackit/serverbackup/models/backup_volume_backups_inner.py
@@ -42,10 +42,19 @@ def status_validate_enum(cls, value):
             return value
 
         if value not in set(
-            ["creating", "available", "deleting", "error", "restoring", "error_deleting", "error-creating"]
+            [
+                "creating",
+                "available",
+                "deleting",
+                "error",
+                "restoring",
+                "error_deleting",
+                "error-creating",
+                "error-deleting",
+            ]
         ):
             raise ValueError(
-                "must be one of enum values ('creating', 'available', 'deleting', 'error', 'restoring', 'error_deleting', 'error-creating')"
+                "must be one of enum values ('creating', 'available', 'deleting', 'error', 'restoring', 'error_deleting', 'error-creating', 'error-deleting')"
             )
         return value