diff --git a/angel.cabal b/angel.cabal
--- a/angel.cabal
+++ b/angel.cabal
@@ -1,5 +1,5 @@
 Name:                angel
-Version:             0.5.2
+Version:             0.6.0
 License:             BSD3
 License-file:        LICENSE
 Author:              Jamie Turner
@@ -42,7 +42,7 @@
   Build-depends: containers >= 0.3
   Build-depends: unordered-containers >= 0.1.4
   Build-depends: unix >= 2.4
-  Build-depends: time
+  Build-depends: time >= 1.5
   Build-depends: old-locale
   Build-depends: text>=0.11
   Build-depends: transformers
diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,6 @@
+0.6.0
+* Upgrade to time 1.5
+
 0.5.2
 * Add -v flag to executable
 
diff --git a/src/Angel/Log.hs b/src/Angel/Log.hs
--- a/src/Angel/Log.hs
+++ b/src/Angel/Log.hs
@@ -5,10 +5,10 @@
 import Control.Monad.Reader
 import Data.Time.LocalTime (ZonedTime,
                             getZonedTime)
-import Data.Time.Format (formatTime)
+import Data.Time.Format ( formatTime
+                        , defaultTimeLocale)
 
 import Text.Printf (printf)
-import System.Locale (defaultTimeLocale)
 import Angel.Data
 
 -- |provide a clean, ISO-ish format for timestamps in logs