diff --git a/cabal.project b/cabal.project
index f3560ee..4087242 100644
--- a/cabal.project
+++ b/cabal.project
@@ -1 +1,7 @@
 packages: ./country, ./code-generation
+
+-- https://github.com/byteverse/bytebuild/pull/29
+source-repository-package
+    type: git
+    location: https://github.com/parsonsmatt/bytebuild
+    tag: f65821b505233a98e74786d7c7ec66aabae50a61
diff --git a/country/country.cabal b/country/country.cabal
index 04141a4..14b72b7 100644
--- a/country/country.cabal
+++ b/country/country.cabal
@@ -75,7 +75,7 @@ library
     , primitive >= 0.6.4 && <0.8
     , primitive-unlifted >= 0.1.3 && <1.0
     , scientific >=0.3 && <0.4
-    , text >= 1.2 && <1.3
+    , text >= 1.2 && <2.2
     , text-short >=0.1.3
     , unordered-containers >=0.2 && <0.3
   default-language: Haskell2010
diff --git a/country/src/Continent.hs b/country/src/Continent.hs
index 3792dfe..5d5ae3a 100644
--- a/country/src/Continent.hs
+++ b/country/src/Continent.hs
@@ -26,7 +26,7 @@ import Continent.Unsafe
 import Control.Monad (forM_)
 import Control.Monad.ST (runST)
 import Country.Unexposed.Continents (continentAList)
-import Country.Unexposed.Util (mapTextArray,charToWord16,word16ToInt,timesTwo)
+import Country.Unexposed.Util (mapTextArray,word16ToInt,timesTwo,charToTextWord)
 import Country.Unsafe (Country(Country))
 import Data.Char (toLower)
 import Data.Text (Text)
@@ -51,8 +51,8 @@ allAlphaUpper = TA.run $ do
   m <- TA.new (timesTwo numberOfContinents)
   forM_ continentNameDb $ \(n,_,(a1,a2)) -> do
     let ix = timesTwo (fromIntegral n)
-    TA.unsafeWrite m ix (charToWord16 a1)
-    TA.unsafeWrite m (ix + 1) (charToWord16 a2)
+    TA.unsafeWrite m ix (charToTextWord a1)
+    TA.unsafeWrite m (ix + 1) (charToTextWord a2)
   return m
 {-# NOINLINE allAlphaUpper #-}
 
diff --git a/country/src/Country.hs b/country/src/Country.hs
index 33c6469..0d88c7d 100644
--- a/country/src/Country.hs
+++ b/country/src/Country.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP #-}
 {-# LANGUAGE BangPatterns #-}
 {-# LANGUAGE DataKinds #-}
 {-# LANGUAGE MagicHash #-}
@@ -40,7 +41,7 @@ import Country.Unexposed.Names (hashMapUtf16,hashMapUtf8)
 import Country.Unexposed.Names (numberOfPossibleCodes,alphaTwoHashMap,alphaThreeHashMap,decodeMap,decodeMapUtf8,decodeNumeric,encodeEnglish,encodeEnglishShort)
 import Country.Unexposed.Trie (Trie,trieFromList,trieParser)
 import Country.Unexposed.TrieByte (TrieByte,trieByteFromList,trieByteParser)
-import Country.Unexposed.Util (mapTextArray,charToWord16,word16ToInt,timesTwo,timesThree)
+import Country.Unexposed.Util (mapTextArray,charToTextWord,word16ToInt,timesTwo,timesThree)
 import Country.Unsafe (Country(..))
 import Data.Bytes.Types (Bytes(Bytes))
 import Data.ByteString (ByteString)
@@ -114,10 +115,15 @@ decodeAlphaThree = flip HM.lookup alphaThreeHashMap
 --   countries. It strives to handle any source language. Open an
 --   issue on the issue tracker if there are names that are missing.
 decode :: Text -> Maybe Country
+#if MIN_VERSION_text(2,0,0)
+decode txt =
+    decodeUtf8 (TE.encodeUtf8 txt)
+#else
 decode (TI.Text (TA.Array arr) off16 len16) =
   case (BytesHashMap.lookup (Bytes (ByteArray arr) (off16 * 2) (len16 * 2)) hashMapUtf16) of
     Nothing -> Nothing
     Just w -> Just (Country (fromIntegral w))
+#endif
 
 -- | Decode a 'Country' from a UTF-8-encoded 'ByteString'.
 decodeUtf8 :: ByteString -> Maybe Country
@@ -164,8 +170,8 @@ allAlphaTwoUpper = TA.run $ do
   m <- TA.new (timesTwo numberOfCountries)
   forM_ countryNameQuads $ \(n,_,(a1,a2),_) -> do
     let ix = timesTwo (indexOfCountry (Country n))
-    TA.unsafeWrite m ix (charToWord16 a1)
-    TA.unsafeWrite m (ix + 1) (charToWord16 a2)
+    TA.unsafeWrite m ix (charToTextWord a1)
+    TA.unsafeWrite m (ix + 1) (charToTextWord a2)
   return m
 {-# NOINLINE allAlphaTwoUpper #-}
 
@@ -174,9 +180,9 @@ allAlphaThreeUpper = TA.run $ do
   m <- TA.new (timesThree numberOfCountries)
   forM_ countryNameQuads $ \(n,_,_,(a1,a2,a3)) -> do
     let ix = timesThree (indexOfCountry (Country n))
-    TA.unsafeWrite m ix (charToWord16 a1)
-    TA.unsafeWrite m (ix + 1) (charToWord16 a2)
-    TA.unsafeWrite m (ix + 2) (charToWord16 a3)
+    TA.unsafeWrite m ix (charToTextWord a1)
+    TA.unsafeWrite m (ix + 1) (charToTextWord a2)
+    TA.unsafeWrite m (ix + 2) (charToTextWord a3)
   return m
 {-# NOINLINE allAlphaThreeUpper #-}
 
diff --git a/country/src/Country/Unexposed/Names.hs b/country/src/Country/Unexposed/Names.hs
index e2d57e8..d49f1a5 100644
--- a/country/src/Country/Unexposed/Names.hs
+++ b/country/src/Country/Unexposed/Names.hs
@@ -1,3 +1,4 @@
+{-# language CPP #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE BangPatterns #-}
 {-# LANGUAGE MagicHash #-}
@@ -140,7 +141,11 @@ hashMapUtf8 = BytesHashMap.fromTrustedList
 hashMapUtf16 :: BytesHashMap.Map
 hashMapUtf16 = BytesHashMap.fromTrustedList
   ( map
+#if MIN_VERSION_text(2,0,0)
+    (\(a,Text.Text (Text.ByteArray arr) off16 len16) ->
+#else
     (\(a,Text.Text (Text.Array arr) off16 len16) ->
+#endif
       (Bytes (ByteArray arr) (off16 * 2) (len16 * 2),fromIntegral a)
     ) countryPairs
   )
diff --git a/country/src/Country/Unexposed/Trie.hs b/country/src/Country/Unexposed/Trie.hs
index 216d187..92f56bc 100644
--- a/country/src/Country/Unexposed/Trie.hs
+++ b/country/src/Country/Unexposed/Trie.hs
@@ -14,8 +14,8 @@ import qualified Data.HashMap.Strict as HM
 import qualified Data.Attoparsec.Text as AT
 import qualified Data.Semigroup as SG
 
--- | If the value is not the max Word16 (65535), there 
---   is a match. This means that 65535 cannot be used, which 
+-- | If the value is not the max Word16 (65535), there
+--   is a match. This means that 65535 cannot be used, which
 --   is fine for this since 65535 is not used as a country code.
 data Trie = Trie
   { trieValue :: {-# UNPACK #-} !Word16
diff --git a/country/src/Country/Unexposed/Util.hs b/country/src/Country/Unexposed/Util.hs
index db89ecf..62bcb9e 100644
--- a/country/src/Country/Unexposed/Util.hs
+++ b/country/src/Country/Unexposed/Util.hs
@@ -1,10 +1,16 @@
+{-# language RankNTypes #-}
+{-# LANGUAGE CPP #-}
 {-# LANGUAGE BangPatterns #-}
 {-# LANGUAGE MagicHash #-}
 
 module Country.Unexposed.Util
   ( mapTextArray
+  , textWordToChar
+  , charToTextWord
   , charToWord16
   , word16ToChar
+  , charToWord8
+  , word8ToChar
   , word16ToInt
   , timesTwo
   , timesThree
@@ -13,27 +19,79 @@ module Country.Unexposed.Util
 
 import Data.Bits (unsafeShiftL,unsafeShiftR)
 import Data.Char (chr,ord)
-import Data.Word (Word16)
+import Data.Word (Word16, Word8)
 import GHC.Exts (sizeofByteArray#)
 import GHC.Int (Int(I#))
+import Control.Monad.ST
+import Data.Text.Unsafe
+import Data.Text.Internal
+import qualified Data.Text.Internal.Unsafe.Char as Unsafe.Char
 
 import qualified Data.Text.Array as TA
 
 
 mapTextArray :: (Char -> Char) -> TA.Array -> TA.Array
+#if MIN_VERSION_text(2,0,0)
+mapTextArray f src@(TA.ByteArray arr) = runST $ do
+    -- this implementation is lifted from the text internals
+      marr <- TA.new (l + 4)
+      outer marr (l + 4) o 0
+      where
+        o = 0
+        l = I# (sizeofByteArray# arr)
+        outer :: forall s. TA.MArray s -> Int -> Int -> Int -> ST s TA.Array
+        outer !dst !dstLen = inner
+          where
+            inner !srcOff !dstOff
+              | srcOff >= l + o = do
+                TA.shrinkM dst dstOff
+                arr <- TA.unsafeFreeze dst
+                return arr
+              | dstOff + 4 > dstLen = do
+                let !dstLen' = dstLen + (l + o) - srcOff + 4
+                dst' <- TA.resizeM dst dstLen'
+                outer dst' dstLen' srcOff dstOff
+              | otherwise = do
+                let !(Iter c d) = iterArray src srcOff
+                d' <- Unsafe.Char.unsafeWrite dst dstOff (safe (f c))
+                inner (srcOff + d) (dstOff + d')
+#else
 mapTextArray f a@(TA.Array inner) = TA.run $ do
   let len = half (I# (sizeofByteArray# inner))
   m <- TA.new len
   TA.copyI m 0 a 0 len
   let go !ix = if ix < len
         then do
-          TA.unsafeWrite m ix (charToWord16 (f (word16ToChar (TA.unsafeIndex a ix))))
+          TA.unsafeWrite m ix (charToTextWord (f (textWordToChar (TA.unsafeIndex a ix))))
           go (ix + 1)
         else return ()
   go 0
   return m
+#endif
 {-# INLINE mapTextArray #-}
 
+#if MIN_VERSION_text(2,0,0)
+textWordToChar :: Word8 -> Char
+textWordToChar = word8ToChar
+
+charToTextWord :: Char -> Word8
+charToTextWord = charToWord8
+#else
+textWordToChar :: Word16 -> Char
+textWordToChar = word16ToChar
+
+charToTextWord :: Char -> Word16
+charToTextWord = charToWord16
+#endif
+
+word8ToChar :: Word8 -> Char
+word8ToChar = chr . fromIntegral
+{-# INLINE word8ToChar #-}
+
+charToWord8 :: Char -> Word8
+charToWord8 = fromIntegral . ord
+{-# INLINE charToWord8 #-}
+
 word16ToChar :: Word16 -> Char
 word16ToChar = chr . fromIntegral
 {-# INLINE word16ToChar #-}