diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/content/series/ContentSeriesRepository.kt b/src/main/kotlin/kr/co/vividnext/sodalive/content/series/ContentSeriesRepository.kt
index d02be1ec..e9123360 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/content/series/ContentSeriesRepository.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/content/series/ContentSeriesRepository.kt
@@ -277,7 +277,7 @@ class ContentSeriesQueryRepositoryImpl(
         val isNewFlag = isNewCase.max()
         val seriesPublishedDay = Expressions.enumPath(SeriesPublishedDaysOfWeek::class.java, "seriesPublishedDay")
         val publishedDaysConcat = Expressions.stringTemplate(
-            "function('group_concat', {0})",
+            "function('group_concat', {0}.stringValue())",
             seriesPublishedDay
         )
 
@@ -453,7 +453,7 @@ class ContentSeriesQueryRepositoryImpl(
         val isNewFlag = isNewCase.max()
         val seriesPublishedDay = Expressions.enumPath(SeriesPublishedDaysOfWeek::class.java, "seriesPublishedDay")
         val publishedDaysConcat = Expressions.stringTemplate(
-            "function('group_concat', {0})",
+            "function('group_concat', {0}.stringValue())",
             seriesPublishedDay
         )
         val latestReleaseDate = audioContent.releaseDate.max()
@@ -625,7 +625,7 @@ class ContentSeriesQueryRepositoryImpl(
         val isNewFlag = isNewCase.max()
         val seriesPublishedDay = Expressions.enumPath(SeriesPublishedDaysOfWeek::class.java, "seriesPublishedDay")
         val publishedDaysConcat = Expressions.stringTemplate(
-            "function('group_concat', {0})",
+            "function('group_concat', {0}.stringValue())",
             seriesPublishedDay
         )
 
@@ -735,7 +735,7 @@ class ContentSeriesQueryRepositoryImpl(
         val isNewFlag = isNewCase.max()
         val seriesPublishedDay = Expressions.enumPath(SeriesPublishedDaysOfWeek::class.java, "seriesPublishedDay")
         val publishedDaysConcat = Expressions.stringTemplate(
-            "function('group_concat', {0})",
+            "function('group_concat', {0}.stringValue())",
             seriesPublishedDay
         )
 
@@ -933,7 +933,7 @@ class ContentSeriesQueryRepositoryImpl(
         val minCurationOrder = audioContentCurationItem.orders.min()
         val seriesPublishedDay = Expressions.enumPath(SeriesPublishedDaysOfWeek::class.java, "seriesPublishedDay")
         val publishedDaysConcat = Expressions.stringTemplate(
-            "function('group_concat', {0})",
+            "function('group_concat', {0}.stringValue())",
             seriesPublishedDay
         )
 
@@ -1055,7 +1055,7 @@ class ContentSeriesQueryRepositoryImpl(
         val isNewFlag = isNewCase.max()
         val seriesPublishedDay = Expressions.enumPath(SeriesPublishedDaysOfWeek::class.java, "seriesPublishedDay")
         val publishedDaysConcat = Expressions.stringTemplate(
-            "function('group_concat', {0})",
+            "function('group_concat', {0}.stringValue())",
             seriesPublishedDay
         )