Bug#868627: arbtt build-depends libghc-aeson-dev (< 0.12) but 1.0.2.1-3 is to be installed

[Adrian Bunk]

Source: arbtt
Version: 0.9.0.9-1
Severity: serious
Tags: buster sid

The following packages have unmet dependencies:
 builddeps:arbtt : Depends: libghc-aeson-dev (< 0.12) but 1.0.2.1-3 is to be 
installed