Sphinx documentation showing double-colon in fields

I am developing documentation for a package and when I build the sphinx docs I'm getting double colons

for all of the fields for every function definition.

I am using the numpydoc style for my docstrings and there are no colons in those docs to indicate where they might be coming from:

    """

    Function description

    Parameters
    -----------
    param1: str or list
        A description for the parameter

    Returns
    -----------
    Dictionary
        Some info about what is returned

    Examples
    -----------
        >>> output = somefunction(param1)

    """

Has anyone run into this before? It's worth noting that this does not happen to the Examples field. Just Parameters, Returns, and Return Type.