diff --git a/src/main/kotlin/kr/hs/dsm/inq/domain/question/persistence/repository/QuestionsRepository.kt b/src/main/kotlin/kr/hs/dsm/inq/domain/question/persistence/repository/QuestionsRepository.kt
index bc51cd7..52b6c6d 100644
--- a/src/main/kotlin/kr/hs/dsm/inq/domain/question/persistence/repository/QuestionsRepository.kt
+++ b/src/main/kotlin/kr/hs/dsm/inq/domain/question/persistence/repository/QuestionsRepository.kt
@@ -56,8 +56,8 @@ class CustomQuestionRepositoryImpl(
         val questionList = queryFactory
             .selectFrom(questions)
             .where(
-                category?.let { questions.category.eq(it) },
-                (keyword ?: "").let { questions.question.contains(keyword) }
+                category?.let { questions.category.eq(it)
+                    .and((keyword ?: "").let { questions.question.contains(keyword) }) }
             )
             .orderBy(questions.likeCount.asc())
             .offsetAndLimit(page)
diff --git a/src/main/kotlin/kr/hs/dsm/inq/domain/question/presentation/dto/Requests.kt b/src/main/kotlin/kr/hs/dsm/inq/domain/question/presentation/dto/Requests.kt
index fbe9f55..88adca8 100644
--- a/src/main/kotlin/kr/hs/dsm/inq/domain/question/presentation/dto/Requests.kt
+++ b/src/main/kotlin/kr/hs/dsm/inq/domain/question/presentation/dto/Requests.kt
@@ -28,7 +28,7 @@ data class AnswerRequest(
 data class GetQuestionListRequest(
     val category: Category?,
     val keyword: String?,
-    val tags: List<String>,
+    val tags: List<String>?,
     val page: Long
 )
 
diff --git a/src/main/kotlin/kr/hs/dsm/inq/domain/question/service/QuestionService.kt b/src/main/kotlin/kr/hs/dsm/inq/domain/question/service/QuestionService.kt
index 14de1ec..46ad30d 100644
--- a/src/main/kotlin/kr/hs/dsm/inq/domain/question/service/QuestionService.kt
+++ b/src/main/kotlin/kr/hs/dsm/inq/domain/question/service/QuestionService.kt
@@ -130,7 +130,7 @@ class QuestionService(
                 page = page,
                 category = category,
                 keyword = keyword,
-                tagList = tags
+                tagList = tags ?: listOf()
             )
         }