diff --git a/colonnade/colonnade.cabal b/colonnade/colonnade.cabal
index 26bebef..6fdf14e 100644
--- a/colonnade/colonnade.cabal
+++ b/colonnade/colonnade.cabal
@@ -1,5 +1,5 @@
 name:                colonnade
-version:             1.1.0
+version:             1.1.1
 synopsis:            Generic types and functions for columnar encoding and decoding
 description:
   The `colonnade` package provides a way to to talk about
@@ -39,6 +39,7 @@ library
     , text >= 1.0 && < 1.3
     , bytestring >= 0.10 && < 0.11
     , profunctors >= 4.0 && < 5.3
+    , semigroups >= 0.17 && < 0.19
   default-language:    Haskell2010
   ghc-options: -Wall
 
diff --git a/colonnade/src/Colonnade.hs b/colonnade/src/Colonnade.hs
index f39c49d..a09068b 100644
--- a/colonnade/src/Colonnade.hs
+++ b/colonnade/src/Colonnade.hs
@@ -1,7 +1,7 @@
 {-# LANGUAGE DataKinds #-}
 {-# LANGUAGE RankNTypes #-}
 
-{-# OPTIONS_GHC -Wall -fno-warn-unused-imports -fno-warn-unticked-promoted-constructors -Werror #-}
+{-# OPTIONS_GHC -Wall -fno-warn-unused-imports -fno-warn-unticked-promoted-constructors #-}
 
 -- | Build backend-agnostic columnar encodings that can be 
 --   used to visualize tabular data.
diff --git a/colonnade/src/Colonnade/Encode.hs b/colonnade/src/Colonnade/Encode.hs
index 7070051..a0811e1 100644
--- a/colonnade/src/Colonnade/Encode.hs
+++ b/colonnade/src/Colonnade/Encode.hs
@@ -8,7 +8,7 @@
 {-# LANGUAGE ScopedTypeVariables #-}
 
 {-# OPTIONS_HADDOCK not-home #-}
-{-# OPTIONS_GHC -Wall -fno-warn-unused-imports -fno-warn-unticked-promoted-constructors -Werror #-}
+{-# OPTIONS_GHC -Wall -fno-warn-unused-imports -fno-warn-unticked-promoted-constructors #-}
 
 -- | Most users of this library do not need this module. The functions
 --   here are used to build functions that apply a 'Colonnade'