diff --git a/src/features/study/api/get-study-data.ts b/src/features/study/api/get-study-data.ts
index 570e7b4e..89f1c674 100644
--- a/src/features/study/api/get-study-data.ts
+++ b/src/features/study/api/get-study-data.ts
@@ -3,7 +3,6 @@ import type {
   DailyStudyDetail,
   GetDailyStudiesParams,
   GetDailyStudiesResponse,
-  GetDailyStudyDetailParams2,
   GetMonthlyCalendarParams,
   JoinStudyRequest,
   MonthlyCalendarResponse,
@@ -87,10 +86,10 @@ export const postJoinStudy = async (payload: JoinStudyRequest) => {
 
 // 스터디 참여 유무 확인
 export const getWeeklyParticipation = async (
-  params: GetDailyStudyDetailParams2,
+  studyDate: string,
 ): Promise<WeeklyParticipationResponse> => {
   const res = await axiosInstance.get('/study/week/participation', {
-    params,
+    params: { studyDate },
   });
 
   return res.data.content;
diff --git a/src/features/study/api/types.ts b/src/features/study/api/types.ts
index 7dbf0b62..f790661b 100644
--- a/src/features/study/api/types.ts
+++ b/src/features/study/api/types.ts
@@ -34,12 +34,6 @@ export interface DailyStudyDetail {
   feedback: string;
 }
 
-export interface GetDailyStudyDetailParams2 {
-  year: number;
-  month: number;
-  day: number;
-}
-
 export interface GetDailyStudiesParams {
   cursor?: number;
   pageSize?: number;
diff --git a/src/features/study/model/use-study-query.ts b/src/features/study/model/use-study-query.ts
index 72afc479..ab782631 100644
--- a/src/features/study/model/use-study-query.ts
+++ b/src/features/study/model/use-study-query.ts
@@ -11,7 +11,6 @@ import {
 import {
   CompleteStudyRequest,
   GetDailyStudiesParams,
-  GetDailyStudyDetailParams2,
   GetMonthlyCalendarParams,
   JoinStudyRequest,
   MonthlyCalendarResponse,
@@ -19,7 +18,7 @@ import {
 } from '../api/types';
 
 // 스터디 주간 참여 유무 확인 query
-export const useWeeklyParticipation = (params: GetDailyStudyDetailParams2) => {
+export const useWeeklyParticipation = (params: string) => {
   return useQuery({
     queryKey: ['weeklyParticipation', params],
     queryFn: () => getWeeklyParticipation(params),
diff --git a/src/features/study/ui/study-card.tsx b/src/features/study/ui/study-card.tsx
index 6cb4faa4..2c8d5352 100644
--- a/src/features/study/ui/study-card.tsx
+++ b/src/features/study/ui/study-card.tsx
@@ -53,18 +53,13 @@ function getWeekly(date: Date): { month: number; week: number } {
 
 export default function StudyCard() {
   const [selectedDate, setSelectedDate] = useState(new Date());
-  const params = {
-    year: selectedDate.getFullYear(),
-    month: selectedDate.getMonth() + 1,
-    day: selectedDate.getDate(),
-  };
 
   const offset = selectedDate.getTimezoneOffset() * 60000; // ms단위라 60000곱해줌
   const dateOffset = new Date(selectedDate.getTime() - offset);
 
   const studyDate = dateOffset.toISOString().split('T')[0];
 
-  const { data: participationData } = useWeeklyParticipation(params);
+  const { data: participationData } = useWeeklyParticipation(studyDate);
   const isParticipate = participationData?.isParticipate ?? false;
 
   const { month, week } = getWeekly(selectedDate);