diff --git a/services/repository/push.go b/services/repository/push.go
index 2ef8cac95..5e2853b27 100644
--- a/services/repository/push.go
+++ b/services/repository/push.go
@@ -321,14 +321,9 @@ func pushUpdateAddTags(ctx context.Context, repo *repo_model.Repository, gitRepo
 		return nil
 	}
 
-	lowerTags := make([]string, 0, len(tags))
-	for _, tag := range tags {
-		lowerTags = append(lowerTags, strings.ToLower(tag))
-	}
-
 	releases, err := db.Find[repo_model.Release](ctx, repo_model.FindReleasesOptions{
 		RepoID:   repo.ID,
-		TagNames: lowerTags,
+		TagNames: tags,
 	})
 	if err != nil {
 		return fmt.Errorf("db.Find[repo_model.Release]: %w", err)
@@ -338,6 +333,11 @@ func pushUpdateAddTags(ctx context.Context, repo *repo_model.Repository, gitRepo
 		relMap[rel.LowerTagName] = rel
 	}
 
+	lowerTags := make([]string, 0, len(tags))
+	for _, tag := range tags {
+		lowerTags = append(lowerTags, strings.ToLower(tag))
+	}
+
 	newReleases := make([]*repo_model.Release, 0, len(lowerTags)-len(relMap))
 
 	emailToUser := make(map[string]*user_model.User)