Water leaking from water filter housing

After replacing the water filter for the first time since buying the refrigerator, water started dripping inside the refrigerator. The water seems to be leaking around the water line at the connection to the water filter. I bought two water filters and swapped out to the second one and the water still leaked - probably not the filter. Also, the o-ring seals around the water filter look fine (no tears, cuts, etc).
Does anyone know how to fix a leak around the water supply line at the water filter connection inside the refrigerator?