There is a echo in the world of technology and you have to adjust to it. The echo says "The newest technology will cause a huge reduction in the number of IT people!" Every few years this rings out and those who pay the IT bill pray it is true, and the planners start planning, and budget analysts start analyzing the budget. And they call the IT people to write more systems to support the planning and the budgeting and they hire more IT people to determine how much the IT staff will shrink.
One the brighter site, retooling, and refreshing the skills is far better than crystalizing in frozen and forgotten technology that will cause you to become a fossil. Learn something, it is good for your heart, your head, your wage, and your future.
If I was still holding fast in the first skill set I used on the job I would be writing batch COBOL or 360 Assembler. However I knew early on that I would either march forward with technology or stand in the past and watch it fade further and further beyond the horizon.
Not all gray hairs are Dinosaurs!