diff --git a/docs/source/api/collection.rst b/docs/source/api/collection.rst
index 98560f90c..c9bbcde40 100644
--- a/docs/source/api/collection.rst
+++ b/docs/source/api/collection.rst
@@ -61,7 +61,7 @@ Methods
 +---------------------------------------------------------------+--------------------------------------------------------------------------+
 | `search() <#pymilvus.Collection.search>`_                     | Vector similarity search with an optional boolean expression as filters. |
 +---------------------------------------------------------------+--------------------------------------------------------------------------+
-| `upsert() <#pymilvus.Collection.upsert>`_                     | Upsert data of collection.                                                                  |
+| `upsert() <#pymilvus.Collection.upsert>`_                     | Upsert data of collection.                                               |
 +---------------------------------------------------------------+--------------------------------------------------------------------------+
 | `query() <#pymilvus.Collection.query>`_                       | Query with a set of criteria.                                            |
 +---------------------------------------------------------------+--------------------------------------------------------------------------+
diff --git a/docs/source/api/partition.rst b/docs/source/api/partition.rst
index 2d68b5e68..28f6b2472 100644
--- a/docs/source/api/partition.rst
+++ b/docs/source/api/partition.rst
@@ -50,7 +50,7 @@ Methods
 +--------------------------------------------+--------------------------------------------------------------------------+
 | `delete() <#pymilvus.Partition.delete>`_   | Delete entities with an expression condition.                            |
 +--------------------------------------------+--------------------------------------------------------------------------+
-| `upsert() <#pymilvus.Collection.upsert>`_  |Upsert data of collection.                                               |
+| `upsert() <#pymilvus.Collection.upsert>`_  | Upsert data of collection.                                               |
 +--------------------------------------------+--------------------------------------------------------------------------+
 | `search() <#pymilvus.Partition.search>`_   | Vector similarity search with an optional boolean expression as filters. |
 +--------------------------------------------+--------------------------------------------------------------------------+