Vitaliy Buyalskiy scored the only goal in the 70th minute, Ukrinform reports.
In another match Group B match, Serbia's Partizan beat Albania's Skenderbeu 2-0 in Belgrade.
Group B standings: Dynamo - 10, Partizan - 5, Young Boys - 3, Skenderbeu - 2.
In the fifth round of the group stage on November 23, Dynamo will play Skenderbeu in Elbasan, whereas Young Boys will take on Partizan in Belgrade.
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