Cannot change version of project Dynamic Web Module to 3.0

Solution :

Open file org.eclipse.wst.common.project.facet.core.xml and edit version on jst.web part.

<?xml version="1.0" encoding="UTF-8"?>
  <fixed facet="wst.jsdt.web"/>
  <installed facet="jst.web" version="3.0"/>
  <installed facet="wst.jsdt.web" version="1.0"/>
  <installed facet="java" version="1.8"/>

Right Click at Project >> Maven >> Update Project

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