diff --git a/lib/line/bot/v2/messaging_api/api/messaging_api_blob_client.rb b/lib/line/bot/v2/messaging_api/api/messaging_api_blob_client.rb
index dca1b9fa..14aaae53 100644
--- a/lib/line/bot/v2/messaging_api/api/messaging_api_blob_client.rb
+++ b/lib/line/bot/v2/messaging_api/api/messaging_api_blob_client.rb
@@ -231,13 +231,13 @@ def get_rich_menu_image(
           # This returns an array containing response, HTTP status code, and header in order. Please specify all header keys in lowercase.
           #
           # @param rich_menu_id [String] The ID of the rich menu to attach the image to
-          # @param body [File, nil] 
+          # @param body [File] 
           # @see https://developers.line.biz/en/reference/messaging-api/#upload-rich-menu-image
           # @return [Array((String|nil), Integer, Hash{String => String})] when HTTP status code is 200
           # @return [Array((String|nil), Integer, Hash{String => String})] when other HTTP status code is returned. String is HTTP response body itself.
           def set_rich_menu_image_with_http_info( # steep:ignore MethodBodyTypeMismatch 
             rich_menu_id:, 
-            body: nil
+            body:
           )
             path = "/v2/bot/richmenu/{richMenuId}/content"
               .gsub(/{richMenuId}/, rich_menu_id.to_s)
@@ -260,13 +260,13 @@ def set_rich_menu_image_with_http_info( # steep:ignore MethodBodyTypeMismatch
           # When you want to get HTTP status code or response headers, use {#set_rich_menu_image_with_http_info} instead of this.
           #
           # @param rich_menu_id [String] The ID of the rich menu to attach the image to
-          # @param body [File, nil] 
+          # @param body [File] 
           # @see https://developers.line.biz/en/reference/messaging-api/#upload-rich-menu-image
           # @return [String, nil] when HTTP status code is 200
           # @return [String, nil] when other HTTP status code is returned. This String is HTTP response body itself.
           def set_rich_menu_image(
             rich_menu_id:,
-            body: nil
+            body:
           )
             response_body, _status_code, _headers = set_rich_menu_image_with_http_info(
               rich_menu_id: rich_menu_id,
diff --git a/lib/line/bot/v2/messaging_api/api/messaging_api_client.rb b/lib/line/bot/v2/messaging_api/api/messaging_api_client.rb
index 19380d82..771c517d 100644
--- a/lib/line/bot/v2/messaging_api/api/messaging_api_client.rb
+++ b/lib/line/bot/v2/messaging_api/api/messaging_api_client.rb
@@ -1570,7 +1570,7 @@ def get_number_of_sent_reply_messages(
             response_body
           end
 
-          # Get number of sent LINE notification messages　
+          # Get number of sent LINE notification messages
           # This requests to <code>GET https://api.line.me/v2/bot/message/delivery/pnp</code>
           # This returns an array containing response, HTTP status code, and header in order. Please specify all header keys in lowercase.
           #
@@ -1604,7 +1604,7 @@ def get_pnp_message_statistics_with_http_info( # steep:ignore MethodBodyTypeMism
             end
           end
 
-          # Get number of sent LINE notification messages　
+          # Get number of sent LINE notification messages
           # This requests to <code>GET https://api.line.me/v2/bot/message/delivery/pnp</code>
           # When you want to get HTTP status code or response headers, use {#get_pnp_message_statistics_with_http_info} instead of this.
           #
diff --git a/line-openapi b/line-openapi
index 982bad2a..779d8ca9 160000
--- a/line-openapi
+++ b/line-openapi
@@ -1 +1 @@
-Subproject commit 982bad2af44827ee5586b28b6a3d7d573217632a
+Subproject commit 779d8ca9e632452ceb4e387b59b7f993497f051c
diff --git a/sig/line/bot/v2/messaging_api/api/messaging_api_blob_client.rbs b/sig/line/bot/v2/messaging_api/api/messaging_api_blob_client.rbs
index c971f187..ccc27788 100644
--- a/sig/line/bot/v2/messaging_api/api/messaging_api_blob_client.rbs
+++ b/sig/line/bot/v2/messaging_api/api/messaging_api_blob_client.rbs
@@ -161,13 +161,13 @@ module Line
           # This returns an array containing response, HTTP status code, and header in order. Please specify all header keys in lowercase.
           #
           # @param rich_menu_id [String] The ID of the rich menu to attach the image to
-          # @param body [File, nil] 
+          # @param body [File] 
           # @see https://developers.line.biz/en/reference/messaging-api/#upload-rich-menu-image
           # @return [Array((String|nil), Integer, Hash{String => String})] when HTTP status code is 200
           # @return [Array((String|nil), Integer, Hash{String => String})] when other HTTP status code is returned. String is HTTP response body itself.
           def set_rich_menu_image_with_http_info: (
             rich_menu_id: String, 
-            ?body: File?
+            body: File
           ) -> (
             [String?, 200, Hash[untyped, untyped]] # when HTTP status code is 200
             | [String?, Integer, Hash[untyped, untyped]] # otherwise
@@ -178,13 +178,13 @@ module Line
           # When you want to get HTTP status code or response headers, use {#set_rich_menu_image_with_http_info} instead of this.
           #
           # @param rich_menu_id [String] The ID of the rich menu to attach the image to
-          # @param body [File, nil] 
+          # @param body [File] 
           # @see https://developers.line.biz/en/reference/messaging-api/#upload-rich-menu-image
           # @return [String, nil] when HTTP status code is 200
           # @return [String, nil] when other HTTP status code is returned. This String is HTTP response body itself.
           def set_rich_menu_image: (
             rich_menu_id: String, 
-            ?body: File?
+            body: File
           ) -> (
             String? # when HTTP status code is 200
             | String? # otherwise
diff --git a/sig/line/bot/v2/messaging_api/api/messaging_api_client.rbs b/sig/line/bot/v2/messaging_api/api/messaging_api_client.rbs
index 6fa6b04b..535c87ea 100644
--- a/sig/line/bot/v2/messaging_api/api/messaging_api_client.rbs
+++ b/sig/line/bot/v2/messaging_api/api/messaging_api_client.rbs
@@ -944,7 +944,7 @@ module Line
             | String? # otherwise
           )
 
-          # Get number of sent LINE notification messages　
+          # Get number of sent LINE notification messages
           # This requests to <code>GET https://api.line.me/v2/bot/message/delivery/pnp</code>
           # This returns an array containing response, HTTP status code, and header in order. Please specify all header keys in lowercase.
           #
@@ -959,7 +959,7 @@ module Line
             | [String?, Integer, Hash[untyped, untyped]] # otherwise
           )
 
-          # Get number of sent LINE notification messages　
+          # Get number of sent LINE notification messages
           # This requests to <code>GET https://api.line.me/v2/bot/message/delivery/pnp</code>
           # When you want to get HTTP status code or response headers, use {#get_pnp_message_statistics_with_http_info} instead of this.
           #