diff --git a/app/modules/cupang/holidays.py b/app/modules/cupang/holidays.py
index 16ea91e..4c652b4 100644
--- a/app/modules/cupang/holidays.py
+++ b/app/modules/cupang/holidays.py
@@ -20,6 +20,7 @@ _FIXED_SOLAR: dict[tuple[int, int], str] = {
     (3, 1): "삼일절",
     (5, 5): "어린이날",
     (6, 6): "현충일",
+    (7, 17): "제헌절",   # 2026년부터 공휴일로 재지정
     (8, 15): "광복절",
     (10, 3): "개천절",
     (10, 9): "한글날",