Bug#869481: haskell-hledger-web build-depends on libghc-megaparsec-dev (< 5.2) but 5.2.0-2+b4 is to be installed

[Adrian Bunk]

Source: haskell-hledger-web
Version: 1.1-1
Severity: serious

The following packages have unmet dependencies:
 builddeps:haskell-hledger-web : Depends: libghc-megaparsec-dev (< 5.2) but 
5.2.0-2+b4 is to be installed