Specify fixed versions for Matplotlib, Sphinx, and Cython to avoid breaking builds when new versions are released.
Specify fixed versions for Matplotlib, Sphinx, and Cython to avoid breaking builds when new versions are released.

AustereCuriosity/astropy,aleksandr-bakanov/astropy,MSeifert04/astropy,DougBurke/astropy,DougBurke/astropy,dhomeier/astropy,funbaker/astropy,stargaser/astropy,bsipocz/astropy,mhvk/astropy,tbabej/astropy,lpsinger/astropy,mhvk/astropy,stargaser/astropy,DougBurke/astropy,larrybradley/astropy,astropy/astropy,mhvk/astropy,StuartLittlefair/astropy,dhomeier/astropy,StuartLittlefair/astropy,larrybradley/astropy,stargaser/astropy,MSeifert04/astropy,StuartLittlefair/astropy,astropy/astropy,tbabej/astropy,bsipocz/astropy,stargaser/astropy,aleksandr-bakanov/astropy,aleksandr-bakanov/astropy,AustereCuriosity/astropy,MSeifert04/astropy,saimn/astropy,tbabej/astropy,saimn/astropy,AustereCuriosity/astropy,joergdietrich/astropy,pllim/astropy,lpsinger/astropy,bsipocz/astropy,joergdietrich/astropy,DougBurke/astropy,lpsinger/astropy,dhomeier/astropy,StuartLittlefair/astropy,kelle/astropy,dhomeier/astropy,pllim/astropy,AustereCuriosity/astropy,pllim/astropy,AustereCuriosity/astropy,kelle/astropy,lpsinger/astropy,lpsinger/astropy,MSeifert04/astropy,funbaker/astropy,joergdietrich/astropy,astropy/astropy,joergdietrich/astropy,tbabej/astropy,larrybradley/astropy,funbaker/astropy,larrybradley/astropy,dhomeier/astropy,saimn/astropy,astropy/astropy,mhvk/astropy,joergdietrich/astropy,pllim/astropy,pllim/astropy,kelle/astropy,mhvk/astropy,saimn/astropy,StuartLittlefair/astropy,tbabej/astropy,astropy/astropy,larrybradley/astropy,saimn/astropy,funbaker/astropy,kelle/astropy,bsipocz/astropy,aleksandr-bakanov/astropy,kelle/astropy