https://github.com/randym/activeadmin-axlsx/blob/4c2ae1f68a0853393f3fbe2baae594d9cb22d488/activeadmin-axlsx.gemspec#L20 to ```s.add_runtime_dependency 'activeadmin', ">= 0.6.0"```
activeadmin-axlsx/activeadmin-axlsx.gemspec
Line 20 in 4c2ae1f
to
s.add_runtime_dependency 'activeadmin', ">= 0.6.0"