@@ -44,6 +44,7 @@ library
4444 mtl,
4545 scientific >= 0.3.1 && < 0.4,
4646 syb,
47+ tagged >=0.8.3 && <0.9,
4748 template-haskell >= 2.4,
4849 text >= 1.1.1.0,
4950 time,
@@ -52,8 +53,8 @@ library
5253 vector >= 0.7.1
5354
5455 if !impl(ghc >= 8.0)
55− -- `Data.Semigroup` is available in base only since GHC 8.0
56− build-depends: semigroups >= 0.16.1
56+ -- `Data.Semigroup` is available in base only since GHC 8.0 / base 4.9
57+ build-depends: semigroups >= 0.16.1 && < 0.19
5758
5859 if flag(old-locale)
5960 build-depends: time < 1.5, old-locale