Try tightening your filter 1/4 turn with a filter wrench. Many people only do them hand tight, which is not enough. Mine had the same problem when I got it. If you are near a Harbor Freight store, they sell a four pack of assorted size filter wrenches. One of them is the correct size for our filters. If it still leaks after that, it could also be a dirty or torn gasket on the filter. You'll want to try these things before worrying about a more serious cause.