Update setup.py

setup.py

 
 install_requires = [
     'marshmallow',
-    'apispec==0.27.1-algoo',
+    'apispec',
     'multidict'
 ]
-dependency_links = [
-    'git+https://github.com/algoo/apispec.git@dev-fork#egg=apispec-0.27.1-algoo'  # nopep8
-]
 tests_require = [
     'pytest',
     'pytest-cov',
     # requirements files see:
     # https://packaging.python.org/en/latest/requirements.html
     install_requires=install_requires,
-    dependency_links=dependency_links,
 
     # List additional groups of dependencies here (e.g. development
     # dependencies). You can install these using the following syntax,