diff --git a/sql-words.cabal b/sql-words.cabal
--- a/sql-words.cabal
+++ b/sql-words.cabal
@@ -1,5 +1,5 @@
 name:                sql-words
-version:             0.1.6.3
+version:             0.1.6.4
 synopsis:            SQL keywords data constructors into OverloadedString
 description:         This package contiains SQL keywords constructors defined as
                      OverloadedString literals and helper functions to concate these.
@@ -8,11 +8,12 @@
 license-file:        LICENSE
 author:              Kei Hibino
 maintainer:          ex8k.hibino@gmail.com
-copyright:           Copyright (c) 2013-2019 Kei Hibino
+copyright:           Copyright (c) 2013-2020 Kei Hibino
 category:            Database
 build-type:          Simple
 cabal-version:       >=1.10
-tested-with:           GHC == 8.6.1, GHC == 8.6.2, GHC == 8.6.3, GHC == 8.6.4, GHC == 8.6.5
+tested-with:           GHC == 8.8.1, GHC == 8.8.2
+                     , GHC == 8.6.1, GHC == 8.6.2, GHC == 8.6.3, GHC == 8.6.4, GHC == 8.6.5
                      , GHC == 8.4.1, GHC == 8.4.2, GHC == 8.4.3, GHC == 8.4.4
                      , GHC == 8.2.1, GHC == 8.2.2
                      , GHC == 8.0.1, GHC == 8.0.2
@@ -36,7 +37,9 @@
   hs-source-dirs:      src
   ghc-options:         -Wall
   if impl(ghc >= 8)
-    ghc-options:         -Wcompat -Wnoncanonical-monadfail-instances
+    ghc-options:         -Wcompat
+  if impl(ghc >= 8) && impl(ghc < 8.8)
+    ghc-options:         -Wnoncanonical-monadfail-instances
 
   default-language:    Haskell2010
 
@@ -52,7 +55,7 @@
   hs-source-dirs:      test
   ghc-options:         -Wall
   if impl(ghc >= 8)
-    ghc-options:         -Wcompat -Wnoncanonical-monadfail-instances
+    ghc-options:         -Wcompat
 
   default-language:    Haskell2010