Description of problem:
when trying to start the application, both from the graphical interface or by invoking apostrophe from the terminal

Version-Release number of selected component:
apostrophe-2.6-1.fc34

Additional info:
reporter:       libreport-2.15.2
cmdline:        /usr/bin/python3 /usr/bin/apostrophe /mnt/media/Code/Websites/defterin.org/content/posts/2022-03-27-newsletter-05.md
crash_function: __getattr__
exception_type: AttributeError
executable:     /usr/bin/apostrophe
interpreter:    python3-3.9.10-1.fc34.x86_64
kernel:         5.16.16-100.fc34.x86_64
runlevel:       N 5
type:           Python3
uid:            1000

Truncated backtrace:
module.py:123:__getattr__:AttributeError: 'gi.repository.Handy' object has no attribute 'StyleManager'

Traceback (most recent call last):
  File "/usr/bin/apostrophe", line 69, in <module>
    sys.exit(main())
  File "/usr/bin/apostrophe", line 63, in main
    return run_application()
  File "/usr/bin/apostrophe", line 54, in run_application
    app = Application('org.gnome.gitlab.somas.Apostrophe')
  File "/usr/lib/python3.9/site-packages/apostrophe/application.py", line 56, in __init__
    style_manager = Handy.StyleManager.get_default()
  File "/usr/lib64/python3.9/site-packages/gi/module.py", line 123, in __getattr__
    raise AttributeError("%r object has no attribute %r" % (
AttributeError: 'gi.repository.Handy' object has no attribute 'StyleManager'

Local variables in innermost frame:
self: <IntrospectionModule 'Handy' from '/usr/lib64/girepository-1.0/Handy-1.typelib'>
name: 'StyleManager'
info: None