diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -3,3 +3,6 @@
 Haskell library (with test suite) to parse Tibetan numerals as integers and display integers as tibetan numerals.
 
 See [Text.Megaparsec](https://hackage.haskell.org/package/megaparsec) documentation for how to use the parser.
+
+There is an Idris version of this library in-progress
+[here](https://github.com/vmchale/tibetan_utils).
diff --git a/src/Text/Megaparsec/Char/Tibetan.hs b/src/Text/Megaparsec/Char/Tibetan.hs
--- a/src/Text/Megaparsec/Char/Tibetan.hs
+++ b/src/Text/Megaparsec/Char/Tibetan.hs
@@ -1,12 +1,15 @@
 module Text.Megaparsec.Char.Tibetan where
 
-import Text.Megaparsec
-import Text.Megaparsec.Text
+import           Data.Void
+import           Text.Megaparsec
+import           Text.Megaparsec.Char
 
+type Parser = Parsec Void String
+
 -- | Parse a consonant
 consonantCharBo :: Parser Char
 consonantCharBo = oneOf ("ཨཅཆརཏཡཕཙཚཛའསདབངམགལཞཟཤཀཁཔནཐཇཉཝཧ" :: String)
 
--- | Parse a digit as a char. 
+-- | Parse a digit as a char.
 digitCharBo :: Parser Char
 digitCharBo = oneOf ("༠༡༢༣༤༥༦༧༨༩" :: String) <?> "digit char"
diff --git a/src/Text/Megaparsec/Lexer/Tibetan.hs b/src/Text/Megaparsec/Lexer/Tibetan.hs
--- a/src/Text/Megaparsec/Lexer/Tibetan.hs
+++ b/src/Text/Megaparsec/Lexer/Tibetan.hs
@@ -7,13 +7,14 @@
     , readBo
     ) where
 
+import Data.Void
 import Data.Composition
 import Data.Either.Combinators
 import qualified Data.Text as T
 import Text.Megaparsec
-import Text.Megaparsec.String
-import Text.Megaparsec.Prim
+import Text.Megaparsec.Char
 import System.Environment
+import Text.Megaparsec.Char.Tibetan
 
 -- | Read a string in, returning integral value or error
 --
@@ -23,7 +24,7 @@
 readBo = fmap fromIntegral . rightToMaybe . (runParser (parseNumber :: Parser Integer) "")
 
 -- | Return verbose errors.
-readBoV :: (Integral a) => String -> Either (ParseError Char Dec) a
+readBoV :: (Integral a) => String -> Either (ParseError Char Void) a
 readBoV = fmap fromIntegral . (runParser (parseNumber :: Parser Integer) "")
 
 -- | Parse Tibetan numerals, returning a positive integer
diff --git a/test/Spec.hs b/test/Spec.hs
--- a/test/Spec.hs
+++ b/test/Spec.hs
@@ -11,14 +11,14 @@
 main :: IO ()
 main = hspec $ do
     describe "parseNumber" $ do
-        it "parses Tibetan numerals as an Int" $ do
+        it "parses Tibetan numerals as an Int" $
             (runParser (parseNumber :: Parser Integer) "") tibStr `shouldParse` 6320
-        it "fails when given a character that isn't a tibetan numeral" $ do
+        it "fails when given a character that isn't a tibetan numeral" $
             (runParser (parseNumber :: Parser Integer) "") `shouldFailOn` otherStr
     describe "showBo" $ do
-        it "displays a positive integer using tibetan numerals" $ do
+        it "displays a positive integer using tibetan numerals" $
             showBo 15 `shouldBe` Just ("༡༥")
-        it "fails on negative inputs" $ do
+        it "fails on negative inputs" $
             showBo (-12) `shouldBe` Nothing
 
 tibStr :: T.Text
diff --git a/tibetan-utils.cabal b/tibetan-utils.cabal
--- a/tibetan-utils.cabal
+++ b/tibetan-utils.cabal
@@ -1,50 +1,45 @@
-name: tibetan-utils
-version: 0.1.1.2
-cabal-version: >=1.10
-build-type: Simple
-license: BSD3
-license-file: LICENSE
-copyright: Copyright: (c) 2016 Vanessa McHale
-maintainer: tmchale@wisc.edu
-homepage: https://github.com/vmchale/tibetan-utils#readme
-synopsis: Parse and display tibetan numerals
-description:
-    Please see README.md
-category: Web
-author: Vanessa McHale
-extra-source-files:
-    README.md
-
-source-repository head
-    type: git
-    location: https://github.com/vmchale/tibetan-utils
+name:                tibetan-utils
+version:             0.1.1.3
+synopsis:            Parse and display tibetan numerals
+description:         Please see README.md
+homepage:            https://github.com/vmchale/tibetan-utils#readme
+license:             BSD3
+license-file:        LICENSE
+author:              Vanessa McHale
+maintainer:          tmchale@wisc.edu
+copyright:           Copyright: (c) 2016 Vanessa McHale
+category:            Web
+build-type:          Simple
+extra-source-files:  README.md
+cabal-version:       >=1.10
 
 library
-    exposed-modules:
-        Text.Megaparsec.Lexer.Tibetan
-        Text.Megaparsec.Char.Tibetan
-        TextShow.Data.Integral.Tibetan
-    build-depends:
-        base >=4.7 && <5,
-        megaparsec >=5.2.0 && <5.3,
-        text >=1.2.2.1 && <1.3,
-        composition >=1.0.2.1 && <1.1,
-        text-show >=3.4.1.1 && <3.5,
-        either >=4.4.1.1 && <4.5
-    default-language: Haskell2010
-    default-extensions: OverloadedStrings
-    hs-source-dirs: src
+  hs-source-dirs:      src
+  exposed-modules:     Text.Megaparsec.Lexer.Tibetan
+                     , Text.Megaparsec.Char.Tibetan
+                     , TextShow.Data.Integral.Tibetan
+  build-depends:       base >= 4.7 && < 5
+                     , megaparsec >= 6.0
+                     , text
+                     , composition
+                     , text-show
+                     , either
+  default-language:    Haskell2010
+  default-extensions:  OverloadedStrings
 
 test-suite tibetan-utils-test
-    type: exitcode-stdio-1.0
-    main-is: Spec.hs
-    build-depends:
-        base >=4.9.1.0 && <4.10,
-        tibetan-utils >=0.1.1.2 && <0.2,
-        hspec >=2.4.2 && <2.5,
-        hspec-megaparsec >=0.3.1 && <0.4,
-        text >=1.2.2.1 && <1.3,
-        megaparsec >=5.2.0 && <5.3
-    default-language: Haskell2010
-    hs-source-dirs: test
-    ghc-options: -threaded -rtsopts -with-rtsopts=-N
+  type:                exitcode-stdio-1.0
+  hs-source-dirs:      test
+  main-is:             Spec.hs
+  build-depends:       base
+                     , tibetan-utils
+                     , hspec
+                     , hspec-megaparsec
+                     , text
+                     , megaparsec
+  ghc-options:         -threaded -rtsopts -with-rtsopts=-N
+  default-language:    Haskell2010
+
+source-repository head
+  type:     git
+  location: https://github.com/vmchale/tibetan-utils