Yes and/or no.

Depending on how far along your pepper plants are, it may just be a natural die of of initial leaves. If itÂs just the bottom couple of leafs and the rest of the plant looks good, itÂs really nothing to worry about.

If the problem is with the overall plant, there could be multiple causes:

Low nitrogen or too much nitrogen (too little, add a bit of bloodmeal, too much, flush plant with water a few times);
Not enough magnesium (fix by misting with epsom salt solution);
Overwatering (fix by watering less, wait for leafs to start drooping before watering) or;
Pests.

Any pictures? More info would help diagnose.

Others may chime in with causes I missed.

Bill