diff --git a/resources/data_material_surcharge/_manifest.json b/resources/data_material_surcharge/_manifest.json
index b327f4ff..ce84dbd3 100644
--- a/resources/data_material_surcharge/_manifest.json
+++ b/resources/data_material_surcharge/_manifest.json
@@ -6,8 +6,8 @@
  "files": [
   {
    "file": "material_surcharge_2026-01-01.json",
-   "sha256": "d9a66bbadec54fa384ce9f04d0ff7081c1896bae606a059f06a742416570aac6",
-   "size_bytes": 4752
+   "sha256": "75138c44944e7f56df850ea5749b60fc35a2db0c8b282b9a5d61927d69ac4fcc",
+   "size_bytes": 4724
   }
  ]
 }
diff --git a/resources/data_material_surcharge/material_surcharge_2026-01-01.json b/resources/data_material_surcharge/material_surcharge_2026-01-01.json
index 6f7947bd..a7eb5b0d 100644
--- a/resources/data_material_surcharge/material_surcharge_2026-01-01.json
+++ b/resources/data_material_surcharge/material_surcharge_2026-01-01.json
@@ -158,11 +158,7 @@
   },
   "not_found": {
     "note": "산림·건설 두 품셈의 재료 할증률표를 다 뒤졌으나 **이름이 없는** 자재. 석재 계열은 건설품셈도 해상 사석(기초·피복·뒤채움)과 원석(마름돌용)만 다룬다.",
-    "materials": [
-      "야면석",
-      "고임돌",
-      "물구멍"
-    ],
+    "materials": ["야면석", "고임돌", "물구멍"],
     "checked": [
       "산림품셈 1-3-1 전 19종",
       "건설품셈 1-3-1 1~7호(콘크리트·노반·관기초·토사(해상)·사석(해상)·속채움(해상)·강재류)",