diff --git a/System/Locale.hs b/System/Locale.hs
--- a/System/Locale.hs
+++ b/System/Locale.hs
@@ -1,3 +1,7 @@
+{-# LANGUAGE CPP #-}
+#if __GLASGOW_HASKELL__ >= 701
+{-# LANGUAGE Safe #-}
+#endif
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  System.Locale
diff --git a/old-locale.cabal b/old-locale.cabal
--- a/old-locale.cabal
+++ b/old-locale.cabal
@@ -1,5 +1,5 @@
 name:		old-locale
-version:	1.0.0.3
+version:	1.0.0.4
 license:	BSD3
 license-file:	LICENSE
 maintainer:	libraries@haskell.org