Emergency fund or retirement provision

Hello everyone, I currently have the following situation: I am saving 10% of my net income in an ETF for my retirement planning/possible property purchase and 5% for my emergency fund. Unfortunately, my emergency fund is currently only 2/3 of my net salary, whereas my ETF has saved significantly more. My ETF is currently at its highest level (up 40% since I started investing). Should I sell shares to replenish my emergency fund in the event of an emergency and a crash?