Use released versions of dependencies in test

[tkf]

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[codecov]

Codecov Report

Merging #24 (bbb2449) into master (3d2409c) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #24   +/-   ##
=======================================
  Coverage   70.93%   70.93%           
=======================================
  Files           6        6           
  Lines         203      203           
=======================================
  Hits          144      144           
  Misses         59       59           

Flag	Coverage Δ
unittests	52.23% <ø> (ø)

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