Upgrading to rails 6.0.3.3, Bundler could not find compatible versions for gem "activesupport"

[rajesh1285]

Bundler could not find compatible versions for gem "activesupport":
In Gemfile:
flip was resolved to 1.1.1, which depends on
activesupport (>= 4.0, <= 5.2)

rails (~> 6.0.3.3) was resolved to 6.0.3.3, which depends on
  activesupport (= 6.0.3.3)