Pin test requirements

[fronzbot]

No description provided.

[codecov]

Codecov Report

Merging #246 into dev will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##              dev     #246   +/-   ##
=======================================
  Coverage   82.34%   82.34%           
=======================================
  Files           8        8           
  Lines         759      759           
=======================================
  Hits          625      625           
  Misses        134      134           

Flag	Coverage Δ
#unittests	82.34% <ø> (ø)

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