Update coroutine dep version

[marcoferrer]

No description provided.

[codecov]

Codecov Report

Merging #97 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #97   +/-   ##
=========================================
  Coverage     86.53%   86.53%           
  Complexity       19       19           
=========================================
  Files            15       15           
  Lines           312      312           
  Branches         53       53           
=========================================
  Hits            270      270           
  Misses           15       15           
  Partials         27       27

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