diff --git a/api/openapi.yaml b/api/openapi.yaml
index b20f677..6439c86 100644
--- a/api/openapi.yaml
+++ b/api/openapi.yaml
@@ -196,7 +196,7 @@ paths:
     #               error:
     #                 type: string
 
-  # /users:
+  /users:
   #   get:
   #     summary: Search user
   #     parameters:
@@ -218,28 +218,28 @@ paths:
   #               items:
   #                 $ref: '#/components/schemas/User'
 
-  #   post:
-  #     summary: Add new user
-  #     requestBody:
-  #       required: true
-  #       content:
-  #         application/json:
-  #           schema:
-  #             $ref: '#/components/schemas/User'
-  #     responses:
-  #       '200':
-  #         description: Add result
-  #         content:
-  #           application/json:
-  #             schema:
-  #               type: object
-  #               properties:
-  #                 success:
-  #                   type: boolean
-  #                 error:
-  #                   type: string
-  #                 user_json:
-  #                   $ref: '#/components/schemas/User'
+    post:
+      summary: Add new user
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/User'
+      responses:
+        '200':
+          description: Add result
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  success:
+                    type: boolean
+                  error:
+                    type: string
+                  user_json:
+                    $ref: '#/components/schemas/User'
 
 #   /users/{user_id}/titles:
 #     get:
@@ -580,7 +580,7 @@ components:
       required:
         - user_id
         - nickname
-        - creation_date
+        # - creation_date
     UserTitle:
       type: object
       additionalProperties: true