diff --git a/sqlExport.py b/sqlExport.py
index e55a6ed..e117f04 100644
--- a/sqlExport.py
+++ b/sqlExport.py
@@ -22,19 +22,23 @@ def insertFromTableMap(table, data, tableMap):
 
     # TODO: this could probably be done better as a single statement?
     # note: this only works if in python >= 3.7 where `dict` is ordered
-    c.executemany('REPLACE INTO ' + table + ' (' +
-                  ','.join(f'`{k}`' for k in tableMap.keys()) +
-                  ') VALUES (' +
-                  ','.join(len(tableMap) * ['%s']) +
-                  ');',
-                  list(formatRows(data)))
+    c.executemany(
+        'INSERT INTO ' + table + ' (' +
+        ','.join(f'`{k}`' for k in tableMap.keys()) +
+        ') VALUES (' + ','.join(len(tableMap) * ['%s']) + ') ' +
+        'ON DUPLICATE KEY UPDATE ' +
+        ', '.join(f'`{k}`=VALUES(`{k}`)' for k in tableMap.keys()) + ';',
+        list(formatRows(data)))
 
 # TODO: delete non-valid labels
 def insertLabels(members):
     for member in members:
         for label, label_id in membershipworks._parse_flags()['labels'].items():
             if member[label]:
-                c.execute('REPLACE INTO member_labels (uid, label_id) VALUES (%s, %s);',
+                c.execute("""
+                INSERT INTO member_labels (uid, label_id) VALUES (%s, %s)
+                ON DUPLICATE KEY UPDATE
+                  uid=VALUES(uid), label_id=VALUES(label_id);""",
                           (member['Account ID'], label_id))
             else:
                 c.execute('DELETE FROM member_labels WHERE uid=%s && label_id=%s;',
@@ -91,7 +95,9 @@ try:
             if field.get('typ') == 8 and field['lbl'] in m: # check box
                 m[field['lbl']] = True if m[field['lbl']] == 'Y' else False
 
-    c.executemany("REPLACE INTO labels (label, label_id) VALUES (%s, %s)",
+    c.executemany("""INSERT INTO labels (label, label_id) VALUES (%s, %s)
+    ON DUPLICATE KEY UPDATE
+    label=VALUES(label), label_id=VALUES(label_id);""",
                   membershipworks._parse_flags()['labels'].items())
 
     insertFromTableMap('members', members, tableMapping['members'])