diff --git a/dislocker.py b/dislocker.py
index 536eae8..7da40da 100644
--- a/dislocker.py
+++ b/dislocker.py
@@ -79,7 +79,7 @@ class DL():
                 find_club_member_table = cursor.fetchall()
                 print(find_club_member_table)
                 if find_club_member_table[0][0] == False:
-                    cursor.execute("CREATE TABLE club_member (id SERIAL NOT NULL, name VARCHAR(50) NOT NULL, discord_username VARCHAR(50) NOT NULL, discord_userid VARCHAR(18) NOT NULL, PRIMARY KEY (id))")
+                    cursor.execute("CREATE TABLE club_member (id SERIAL NOT NULL, name VARCHAR(128) NOT NULL, discord_username VARCHAR(128) NOT NULL, discord_userid VARCHAR(18) NOT NULL, PRIMARY KEY (id))")
                     self.db.commit()
 
                 cursor.execute("SELECT EXISTS (SELECT FROM information_schema.tables WHERE  table_schema = 'public' AND table_name = 'pc_list')")
@@ -96,7 +96,7 @@ class DL():
                 find_pc_usage_history_table = cursor.fetchall()
                 print(find_pc_usage_history_table)
                 if find_pc_usage_history_table[0][0] == False:
-                    cursor.execute("CREATE TABLE pc_usage_history (id SERIAL NOT NULL, member_id INTEGER NOT NULL, pc_number INTEGER NOT NULL, device_number INTEGER NOT NULL, start_use_time TIMESTAMP NOT NULL, end_use_time TIMESTAMP, use_detail VARCHAR(30), bot_about VARCHAR(30), PRIMARY KEY (id), FOREIGN KEY (member_id) REFERENCES club_member(id), FOREIGN KEY (pc_number) REFERENCES pc_list(pc_number))")
+                    cursor.execute("CREATE TABLE pc_usage_history (id SERIAL NOT NULL, member_id INTEGER NOT NULL, pc_number INTEGER NOT NULL, device_number INTEGER NOT NULL, start_use_time TIMESTAMP NOT NULL, end_use_time TIMESTAMP, use_detail VARCHAR(128), bot_about VARCHAR(128), PRIMARY KEY (id), FOREIGN KEY (member_id) REFERENCES club_member(id), FOREIGN KEY (pc_number) REFERENCES pc_list(pc_number))")
                     self.db.commit()
                 
                 cursor.close()