diff --git a/states/maildb/templates/maildb.py b/states/maildb/templates/maildb.py
index ec0485c..d091e4f 100644
--- a/states/maildb/templates/maildb.py
+++ b/states/maildb/templates/maildb.py
@@ -50,7 +50,8 @@ def CreateDB(conn, cursor):
 
 def InsertMail(conn, cursor, sender, recipient, content):
     try:
-        cursor.execute(f"INSERT INTO mail (sender, recipient, content) values ('{sender}','{recipient}','{content}');")
+        cursor.execute("PREPARE InsertMail as INSERT INTO mail (sender, recipient, content) values ($1, $2, $3);")
+        cursor.execute("EXECUTE InsertMail (%s, %s, %s);", (sender, recipient, content))
         conn.commit()
     except Exception as e:
         print(e)