Fix contract to ~2.3

[jeckel]

No description provided.

[codecov]

Codecov Report

Merging #36 (341549a) into main (f9977a2) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main      #36   +/-   ##
=========================================
  Coverage     98.63%   98.63%           
  Complexity       65       65           
=========================================
  Files            14       14           
  Lines           146      146           
=========================================
  Hits            144      144           
  Misses            2        2           

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