Merge pull request #192 from phadej/patch-2

Allow semigroups-0.20

Author: bgamari

attoparsec.cabal

@@ -44,7 +44,7 @@ library
                  containers,
                  deepseq,
                  scientific >= 0.3.1 && < 0.4,
-                 transformers >= 0.2 && (< 0.4 || >= 0.4.1.0) && < 0.6,
+                 transformers >= 0.2 && (< 0.4 || >= 0.4.1.0) && < 0.7,
                  text >= 1.1.1.3,
                  ghc-prim <0.9
   if impl(ghc < 7.4)
@@ -54,7 +54,7 @@ library
   if !impl(ghc >= 8.0)
     -- Data.Semigroup && Control.Monad.Fail are available in base-4.9+
     build-depends: fail == 4.9.*,
-                   semigroups >=0.16.1 && <0.20
+                   semigroups >=0.16.1 && <0.21
 
   exposed-modules: Data.Attoparsec
                    Data.Attoparsec.ByteString