diff --git a/openapi/CHANGELOG.md b/openapi/CHANGELOG.md
index b71ee56c..2218df71 100644
--- a/openapi/CHANGELOG.md
+++ b/openapi/CHANGELOG.md
@@ -4,6 +4,15 @@
 
 ## v0.108.0: API changes
 
+## v0.107.44: API changes
+
+### The field `"upstream_mode"` in `DNSConfig`
+
+* The field `"upstream_mode"` in `POST /control/dns_config` and
+  `GET /control/dns_info` now accepts `load_balance` value. Note that, the usage
+  of an empty string or field absence is considered to as deprecated and is not
+  recommended. Use `load_balance` instead.
+
 ## v0.107.42: API changes
 
 ### The new field `"serve_plain_dns"` in `TlsConfig`
diff --git a/openapi/openapi.yaml b/openapi/openapi.yaml
index 5ab3fa52..2c580116 100644
--- a/openapi/openapi.yaml
+++ b/openapi/openapi.yaml
@@ -1526,8 +1526,13 @@
         'upstream_mode':
           'enum':
           - ''
-          - 'parallel'
           - 'fastest_addr'
+          - 'load_balance'
+          - 'parallel'
+          'description': >
+            Upstream modes enumeration.
+
+            Deprecated: `` is not recommended. Use `load_balance` instead.
         'use_private_ptr_resolvers':
           'type': 'boolean'
         'resolve_clients':