Displaying Bootstrap 4 dropdown menu on hover

I've noticed that the dropdown menus in Bootstrap 4 are triggered by click by default, but for some reason, my menu is appearing on hover without any additional CSS or JS. This poses a problem for mobile development. I could create a jQuery solution, but I'm hoping there's a native Bootstrap 4 fix for this issue.

Below is a snippet of one of my dropdowns:

<nav class="navbar navbar-expand-md navbar-light bg-primary py-0">
    <div class="container h-100 pl-0 pr-0">
        <div class="collapse navbar-collapse h-100" id="navbarSupportedContent">

...
javascriptcssbootstrap-4

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