diff --git a/Data/Time/Clock/CTimeval.hs b/Data/Time/Clock/CTimeval.hs
--- a/Data/Time/Clock/CTimeval.hs
+++ b/Data/Time/Clock/CTimeval.hs
@@ -4,7 +4,7 @@
 #ifndef mingw32_HOST_OS
 -- All Unix-specific, this
 
-import Foreign
+import Foreign.Safe
 import Foreign.C
 
 data CTimeval = MkCTimeval CLong CLong
diff --git a/Data/Time/Clock/Scale.hs b/Data/Time/Clock/Scale.hs
--- a/Data/Time/Clock/Scale.hs
+++ b/Data/Time/Clock/Scale.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE Trustworthy #-}
 {-# OPTIONS -fno-warn-unused-imports #-}
 #include "HsConfigure.h"
 -- #hide
diff --git a/Data/Time/Clock/UTC.hs b/Data/Time/Clock/UTC.hs
--- a/Data/Time/Clock/UTC.hs
+++ b/Data/Time/Clock/UTC.hs
@@ -1,4 +1,5 @@
 {-# OPTIONS -fno-warn-unused-imports #-}
+{-# LANGUAGE Trustworthy #-}
 #include "HsConfigure.h"
 -- #hide
 module Data.Time.Clock.UTC
diff --git a/Data/Time/LocalTime/TimeZone.hs b/Data/Time/LocalTime/TimeZone.hs
--- a/Data/Time/LocalTime/TimeZone.hs
+++ b/Data/Time/LocalTime/TimeZone.hs
@@ -17,7 +17,7 @@
 import Data.Time.Clock
 import Data.Time.Clock.POSIX
 
-import Foreign
+import Foreign.Safe
 import Foreign.C
 import Control.DeepSeq
 import Data.Typeable
diff --git a/time.cabal b/time.cabal
--- a/time.cabal
+++ b/time.cabal
@@ -1,5 +1,5 @@
 name:           time
-version:        1.4.1
+version:        1.4.2
 stability:      stable
 license:        BSD3
 license-file:   LICENSE
@@ -36,7 +36,7 @@
 
 library
     build-depends: 
-        base >= 4 && < 5,
+        base >= 4.4 && < 5,
         deepseq >= 1.1,
         old-locale
     ghc-options: -Wall