diff --git a/betacode.cabal b/betacode.cabal
--- a/betacode.cabal
+++ b/betacode.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                betacode
-version:             0.1.0.0
+version:             0.1.0.1
 synopsis:            A codec for beta code (http://en.wikipedia.org/wiki/Beta_Code).
 category:            Text
 description:         A codec for beta code (http://en.wikipedia.org/wiki/Beta_Code).
@@ -20,12 +20,12 @@
   exposed-modules:     Text.BetaCode
   -- other-modules:       
   -- other-extensions:    
-  build-depends:       base >=4.7 && <4.8
-                     , errors     >=1.4  && <1.5
-                     , attoparsec >=0.12 && <0.13
-                     , hashable   >=1.2  && <1.3
-                     , text       >=1.2  && <1.3
-                     , text-icu   >=0.7  && <0.8
+  build-depends:       base >=4.19 && <4.20
+                     , errors     >=2.3  && <2.4
+                     , attoparsec >=0.14 && <0.15
+                     , hashable   >=1.4  && <1.5
+                     , text       >=2.1  && <2.2
+                     , text-icu   >=0.8  && <0.9
   hs-source-dirs:      src
   default-language:    Haskell2010
 
@@ -34,7 +34,7 @@
   ghc-options:         -threaded -rtsopts
   hs-source-dirs:      specs
   main-is:             Specs.hs
-  build-depends:         base       == 4.7.*
+  build-depends:         base       == 4.19.*
                        , QuickCheck
                        , smallcheck
                        , hspec