diff --git a/backend/core/src/main/java/site/timecapsulearchive/core/domain/auth/api/AuthApi.java b/backend/core/src/main/java/site/timecapsulearchive/core/domain/auth/api/AuthApi.java
index 4cf3f8e41..ce89ea1c5 100644
--- a/backend/core/src/main/java/site/timecapsulearchive/core/domain/auth/api/AuthApi.java
+++ b/backend/core/src/main/java/site/timecapsulearchive/core/domain/auth/api/AuthApi.java
@@ -139,6 +139,7 @@ public interface AuthApi {
                         
             로그인된 사용자만 가능하다.
             """,
+        security = {@SecurityRequirement(name = "user_token")},
         tags = {"auth"}
     )
     @ApiResponses(value = {
diff --git a/backend/core/src/main/java/site/timecapsulearchive/core/domain/capsule/group_capsule/service/GroupCapsuleService.java b/backend/core/src/main/java/site/timecapsulearchive/core/domain/capsule/group_capsule/service/GroupCapsuleService.java
index 7476b98d6..6b6e88594 100644
--- a/backend/core/src/main/java/site/timecapsulearchive/core/domain/capsule/group_capsule/service/GroupCapsuleService.java
+++ b/backend/core/src/main/java/site/timecapsulearchive/core/domain/capsule/group_capsule/service/GroupCapsuleService.java
@@ -2,10 +2,13 @@
 
 import java.time.ZoneOffset;
 import java.time.ZonedDateTime;
+import java.util.Collections;
 import java.util.List;
 import lombok.RequiredArgsConstructor;
 import org.locationtech.jts.geom.Point;
 import org.springframework.data.domain.Slice;
+import org.springframework.data.domain.SliceImpl;
+import org.springframework.security.core.parameters.P;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import site.timecapsulearchive.core.domain.capsule.data.dto.CapsuleBasicInfoDto;
@@ -199,6 +202,10 @@ public Slice<GroupCapsuleDto> findGroupCapsuleSlice(
     ) {
         final List<Long> groupIds = memberGroupRepository.findGroupIdsByMemberId(memberId);
 
+        if (groupIds.isEmpty()) {
+            return new SliceImpl<>(Collections.emptyList());
+        }
+
         return groupCapsuleQueryRepository.findGroupCapsuleSlice(size, lastCapsuleId,
             groupIds);
     }
diff --git a/backend/core/src/main/java/site/timecapsulearchive/core/domain/member/api/MemberApi.java b/backend/core/src/main/java/site/timecapsulearchive/core/domain/member/api/MemberApi.java
index b09afd7bd..a3958f230 100644
--- a/backend/core/src/main/java/site/timecapsulearchive/core/domain/member/api/MemberApi.java
+++ b/backend/core/src/main/java/site/timecapsulearchive/core/domain/member/api/MemberApi.java
@@ -232,6 +232,7 @@ ResponseEntity<ApiSpec<String>> updateMemberPhoneSearchAvailable(
         description = """
             가입한 사용자가 회원을 탈퇴한다.
             """,
+        security = {@SecurityRequirement(name = "user_token")},
         tags = {"member"}
     )
     @ApiResponses(value = {
diff --git a/backend/core/src/main/resources/config b/backend/core/src/main/resources/config
index 7a309094b..10bd3becb 160000
--- a/backend/core/src/main/resources/config
+++ b/backend/core/src/main/resources/config
@@ -1 +1 @@
-Subproject commit 7a309094bc5b65cea41c043991fc32b8f00b9778
+Subproject commit 10bd3becb428fd412e8cec1bcb108b98444a8e3a