Uses https to fetch d3 script
@@ -172,4 +172,4 @@ class TimeDynamicGeoJson(GeoJson):
figure = self.get_root()
assert isinstance(figure, Figure), ('You cannot render this Element '
'if it is not in a Figure.')
- figure.header.add_child(JavascriptLink('http://d3js.org/d3.v4.min.js')) # noqa
+ figure.header.add_child(JavascriptLink('https://d3js.org/d3.v4.min.js')) # noqa
