diff --git a/CHANGELOG.md b/CHANGELOG.md
index 03f804f5..0239505d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -47,6 +47,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Removed
 - Review rating, reviewer field from the job instance (use assignee field together with stage field instead) (<https://github.com/openvinotoolkit/cvat/pull/3788>)
 - Training django app (<https://github.com/openvinotoolkit/cvat/pull/4330>)
+- v1 api version support (<https://github.com/openvinotoolkit/cvat/pull/4332>)
 
 ### Fixed
 - Fixed Interaction handler keyboard handlers (<https://github.com/openvinotoolkit/cvat/pull/3881>)
diff --git a/cvat/settings/base.py b/cvat/settings/base.py
index c8e7500c..c4fdb6fe 100644
--- a/cvat/settings/base.py
+++ b/cvat/settings/base.py
@@ -156,7 +156,7 @@ REST_FRAMEWORK = {
     ],
     'DEFAULT_VERSIONING_CLASS':
         'rest_framework.versioning.AcceptHeaderVersioning',
-    'ALLOWED_VERSIONS': ('1.0', '2.0'),
+    'ALLOWED_VERSIONS': ('2.0'),
     'DEFAULT_VERSION': '2.0',
     'VERSION_PARAM': 'version',
     'DEFAULT_PAGINATION_CLASS':
diff --git a/site/content/en/docs/manual/advanced/backup.md b/site/content/en/docs/manual/advanced/backup.md
index 14a07f82..6ee41be5 100644
--- a/site/content/en/docs/manual/advanced/backup.md
+++ b/site/content/en/docs/manual/advanced/backup.md
@@ -39,7 +39,7 @@ task or project and task specification and annotations with the following struct
 
 ### Backup API
 
-- endpoint: `/v1/tasks/{id}/backup` or `/v1/projects/{id}/backup`
+- endpoint: `/tasks/{id}/backup` or `/projects/{id}/backup`
 - method: `GET`
 - responses: 202, 201 with zip archive payload