Change version

If your gradle project has file gradle/wrapper/gradle-wrapper.properties, then you can change underlined link to necessary version of gradle. Then reload you project. Some IDE such Idea automatically detect changes and you will see button for reloading.

distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-bin.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists