cainophobia
The fear of newness and/or of things that are new.
uncountable
It is not by means of a social xenophobia and cainophobia that we shall succeed in junking our sawdust goals but only by a sincere and passionate openness to new experience.
Where it comes from
From the Ancient Greek roots καινός (kainós, “new”) or καινότης (kainótēs, “newness”) + -phobia.
Adapted from the Wiktionary entry cainophobia (CC BY-SA 4.0).