3.0.1 doesn't work with Jest

When trying to upgrade d3-interpolate 2.0.1 -> 3.0.1, my Jest tests fail with:

  ● Test suite failed to run

    Jest encountered an unexpected token

    This usually means that you are trying to import a file which Jest cannot parse, e.g. it's not plain JavaScript.

    By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules".

    Here's what you can do:
     • To have some of your "node_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config.
     • If you need a custom transformation specify a "transform" option in your config.
     • If you simply want to mock your non-JS modules (e.g. binary assets) you can stub them out with the "moduleNameMapper" config option.

    You'll find more details and examples of these config options in the docs:
    https://jestjs.io/docs/en/configuration.html

    Details:

    /home/slaweet/git/frontend/node_modules/d3-interpolate/src/index.js:1
    ({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,global,jest){export {default as interpolate} from "./value.js";
                                                                                             ^^^^^^

    SyntaxError: Unexpected token 'export'

      129 | <script lang="ts">
      130 | import { Component, Prop, Vue } from 'vue-property-decorator';
    > 131 | import { interpolateRgb } from 'd3-interpolate';
          | ^
      132 | import BigNumber from 'bignumber.js';
      133 | import { Stats } from 'fast-stats';
      134 | import Color from 'color';

Using node v14.15.4