diff --git a/v2020_06_15/open-api-3/api-schema.json b/v2020_06_15/open-api-3/api-schema.json
index 084a3d1..87e61f6 100644
--- a/v2020_06_15/open-api-3/api-schema.json
+++ b/v2020_06_15/open-api-3/api-schema.json
@@ -154,6 +154,22 @@
               "maximum": 2147483647
             }
           },
+          {
+            "name": "start_update_date",
+            "in": "query",
+            "description": "更新日で絞り込み：開始日(yyyy-mm-dd)",
+            "schema": {
+              "type": "string"
+            }
+          },
+          {
+            "name": "end_update_date",
+            "in": "query",
+            "description": "更新日で絞り込み：終了日(yyyy-mm-dd)",
+            "schema": {
+              "type": "string"
+            }
+          },
           {
             "name": "offset",
             "in": "query",
diff --git a/v2020_06_15/open-api-3/api-schema.yml b/v2020_06_15/open-api-3/api-schema.yml
index b0977ee..5d552eb 100644
--- a/v2020_06_15/open-api-3/api-schema.yml
+++ b/v2020_06_15/open-api-3/api-schema.yml
@@ -5632,6 +5632,16 @@ paths:
           maximum: 2147483647
           minimum: 1
           type: integer
+      - description: 更新日で絞り込み：開始日(yyyy-mm-dd)
+        in: query
+        name: start_update_date
+        schema:
+          type: string
+      - description: 更新日で絞り込み：終了日(yyyy-mm-dd)
+        in: query
+        name: end_update_date
+        schema:
+          type: string
       - description: '取得レコードのオフセット (デフォルト: 0)'
         in: query
         name: offset