Test with MW 38 and 39

[JeroenDeDauw]

Easiest way to fix this is to create a new MW 39+ version that updated the expected values in the parser tests

[codecov-commenter]

Codecov Report

Merging #26 (844480e) into master (5247a2c) will not change coverage. The diff coverage is n/a.

:exclamation: Current head 844480e differs from pull request most recent head c5b2c73. Consider uploading reports for the commit c5b2c73 to get more accurate results

@@            Coverage Diff            @@
##             master      #26   +/-   ##
=========================================
  Coverage     98.25%   98.25%           
  Complexity      112      112           
=========================================
  Files            20       20           
  Lines           286      286           
=========================================
  Hits            281      281           
  Misses            5        5           

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