You may need to try and create a bit more maintenance time. Sometimes, just delaying a departure at the end of your maintenance gap may do the trick (if slots are available for this), depending on how you scheduled your flights. If you don’t, then chances are that down the line, the aircraft won’t get enough repairs and drop to 50% ‘health’, at which point it can’t fly anymore. This may take months though at that maintenance ratio, but still, it could be an issue.
You could also try to swap one of the round trips with a slightly shorter one so you gain a few minutes on your maintenance window.