diff --git a/configifier.cabal b/configifier.cabal
--- a/configifier.cabal
+++ b/configifier.cabal
@@ -1,5 +1,5 @@
 name:                configifier
-version:             0.1.0
+version:             0.1.1
 synopsis:            parser for config files, shell variables, command line args.
 description:         See <https://github.com/zerobuzz/configifier/blob/master/README.md README>
 license:             AGPL-3
@@ -44,7 +44,7 @@
     , string-conversions >=0.3 && <0.5
     , template-haskell >=2.10 && <2.11
     , unordered-containers >=0.2 && <0.3
-    , vector >=0.10 && <0.11
+    , vector >=0.10 && <0.12
     , yaml >=0.8 && <0.9
 
 executable configifier-example
diff --git a/src/Data/Configifier.hs b/src/Data/Configifier.hs
--- a/src/Data/Configifier.hs
+++ b/src/Data/Configifier.hs
@@ -19,6 +19,7 @@
 {-# LANGUAGE UndecidableInstances  #-}
 {-# LANGUAGE ViewPatterns          #-}
 
+{-# OPTIONS_GHC -fno-warn-unticked-promoted-constructors -fno-warn-unused-imports -Wwarn #-}
 module Data.Configifier
 where