diff --git a/simple-parser.cabal b/simple-parser.cabal
--- a/simple-parser.cabal
+++ b/simple-parser.cabal
@@ -1,13 +1,13 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.34.4.
+-- This file has been generated from package.yaml by hpack version 0.35.0.
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: cfc5b1cb72599e6ff1fdcda8ef9bca96a91c3fb347c172a0bcf61c9fd18f7e48
+-- hash: 464f6735c9053e41c4e71258d387276d1b8d89c3b7506b41e260af15789b3767
 
 name:           simple-parser
-version:        0.12.0
+version:        0.12.1
 synopsis:       Simple parser combinators
 description:    Please see the README on GitHub at <https://github.com/ejconlon/simple-parser#readme>
 category:       Parsing
@@ -74,11 +74,11 @@
   ghc-options: -Wall -Wcompat -Widentities -Wincomplete-record-updates -Wincomplete-uni-patterns -Wpartial-fields -Wredundant-constraints -fno-warn-unused-top-binds
   build-depends:
       base >=4.12 && <5
-    , bytestring ==0.10.*
+    , bytestring >=0.10 && <0.12
     , containers ==0.6.*
     , errata ==0.4.*
     , exceptions ==0.10.*
-    , mmorph ==1.1.*
+    , mmorph >=1.1 && <1.3
     , mtl ==2.2.*
     , nonempty-containers ==0.3.*
     , scientific ==0.3.*
@@ -114,11 +114,11 @@
   ghc-options: -Wall -Wcompat -Widentities -Wincomplete-record-updates -Wincomplete-uni-patterns -Wpartial-fields -Wredundant-constraints -fno-warn-unused-top-binds -threaded -rtsopts -with-rtsopts=-N
   build-depends:
       base >=4.12 && <5
-    , bytestring ==0.10.*
+    , bytestring >=0.10 && <0.12
     , containers ==0.6.*
     , errata ==0.4.*
     , exceptions ==0.10.*
-    , mmorph ==1.1.*
+    , mmorph >=1.1 && <1.3
     , mtl ==2.2.*
     , nonempty-containers ==0.3.*
     , scientific ==0.3.*
diff --git a/src/SimpleParser/Lexer.hs b/src/SimpleParser/Lexer.hs
--- a/src/SimpleParser/Lexer.hs
+++ b/src/SimpleParser/Lexer.hs
@@ -36,10 +36,6 @@
   , lsEndPos :: !p
   } deriving stock (Eq, Show, Functor, Foldable, Traversable)
 
-newtype LexedChunk a = LexedChunk { unLexedChunk :: Seq a }
-  deriving stock (Show)
-  deriving newtype (Eq)
-
 instance Stream (LexedStream p a) where
   type Token (LexedStream p a) = a
   type Chunk (LexedStream p a) = Seq a
@@ -114,7 +110,6 @@
   ExplainLabel l1, ExplainError e1, ExplainLabel l2, ExplainError e2) =>
   Parser l1 s e1 a -> (LexedStream (Pos s) a -> LexedStream (Pos s) a) -> Parser l2 (LexedStream (Pos s) a) e2 b -> String -> IO (Maybe b)
 lexedParseInteractive lp f p input = do
-  -- TODO renderInteractive TWICE
   let lexRes = runParser (lexedParser lp <* matchEnd) (newLinePosStream (T.pack input))
   putStrLn "Lex result:"
   renderInteractive ErrorStyleErrata input lexRes