diff --git a/Spintax.cabal b/Spintax.cabal
--- a/Spintax.cabal
+++ b/Spintax.cabal
@@ -1,5 +1,5 @@
 name:                Spintax
-version:             0.3.5
+version:             0.3.6
 synopsis:            Random text generation based on spintax
 description:         Random text generation based on spintax with nested alternatives and empty options.
 homepage:            https://github.com/MichelBoucey/spintax
@@ -7,17 +7,17 @@
 license-file:        LICENSE
 author:              Michel Boucey
 maintainer:          michel.boucey@gmail.com
-copyright:           (c) 2016-2020 - Michel Boucey
+copyright:           (c) 2016-2021 - Michel Boucey
 category:            Text
 build-type:          Simple
 cabal-version:       >=1.10
 
-Tested-With: GHC ==8.4.4 || ==8.6.5 || ==8.8.3 || ==8.10.1
+Tested-With: GHC ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.1 || ==8.10.4 || ==9.0.1
 
 library
   hs-source-dirs:    src
   exposed-modules:   Text.Spintax
-  build-depends:     attoparsec   >= 0.12.1.6 && < 0.14
+  build-depends:     attoparsec   >= 0.12.1.6 && < 0.15
                    , base         >= 4.7 && < 5
                    , extra        >= 1.4.3 && < 1.8
                    , mtl          >= 2.2.1 && < 2.3