diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,7 @@
+## 0.4.7.1
+
+* Use parseTimeM from Data.Time.Format instead of parseTime (https://github.com/paul-rouse/mysql-simple/pull/53)
+
 ## 0.4.7
 
 *  Allow JSON fields to be read in as ByteStrings (https://github.com/paul-rouse/mysql-simple/pull/52)
diff --git a/Database/MySQL/Simple/Result.hs b/Database/MySQL/Simple/Result.hs
--- a/Database/MySQL/Simple/Result.hs
+++ b/Database/MySQL/Simple/Result.hs
@@ -39,7 +39,7 @@
 import Data.Ratio (Ratio)
 import Data.Time.Calendar (Day, fromGregorian)
 import Data.Time.Clock (UTCTime(..))
-import Data.Time.Format (parseTime)
+import Data.Time.Format (parseTimeM)
 import Data.Time.LocalTime (TimeOfDay, makeTimeOfDayValid)
 import Data.Typeable (TypeRep, Typeable, typeOf)
 import Data.Word (Word, Word8, Word16, Word32, Word64)
@@ -162,7 +162,7 @@
 
 instance Result UTCTime where
     convert f = doConvert f ok $ \bs ->
-                case parseTime defaultTimeLocale "%F %T%Q" (B8.unpack bs) of
+                case parseTimeM True defaultTimeLocale "%F %T%Q" (B8.unpack bs) of
                   Just t -> t
                   Nothing
                     | SB.isPrefixOf "0000-00-00" bs ->
@@ -182,7 +182,7 @@
 
 instance Result TimeOfDay where
     convert f = doConvert f ok $ \bs ->
-                case parseTime defaultTimeLocale "%T%Q" (B8.unpack bs) of
+                case parseTimeM True defaultTimeLocale "%T%Q" (B8.unpack bs) of
                   Just t -> t
                   _      -> conversionFailed f "TimeOfDay" "could not parse"
         where ok = mkCompats [Time]
diff --git a/Database/MySQL/Simple/Types.hs b/Database/MySQL/Simple/Types.hs
--- a/Database/MySQL/Simple/Types.hs
+++ b/Database/MySQL/Simple/Types.hs
@@ -31,12 +31,26 @@
 import qualified Data.ByteString as B
 
 -- | A placeholder for the SQL @NULL@ value.
+--
+-- Prior to @mysql-simple-0.5@, an 'Eq' instance was provided for 'Null'.
+-- In an attempt to mirror SQL semantics, it unconditionally produced
+-- 'False' for both '==' and '/='.  However, this is not correct SQL semantics,
+-- and in any case it is unclear why those semantics in Haskell would be
+-- caried over to a Haskell program manipulating a database.  A proposal has
+-- been accepted to remove '/=' from the 'Eq' class, so this non-law-abiding
+-- instance will become impossible.  Therefore, the 'Eq' instance will simply
+-- be removed.
+--
+-- Currently a WARNING is produced for uses of the 'Null' type since it is
+-- not possible to attach a DEPRECATED pragma to an instance.
+--
 data Null = Null
           deriving (Read, Show, Typeable)
 
 instance Eq Null where
     _ == _ = False
     _ /= _ = False
+{-# WARNING Null "The Eq instance of Null is deprecated: see the documentation for Null in Database.MySQL.Simple.Types" #-}
 
 -- | A query string. This type is intended to make it difficult to
 -- construct a SQL query by concatenating string fragments, as that is
diff --git a/mysql-simple.cabal b/mysql-simple.cabal
--- a/mysql-simple.cabal
+++ b/mysql-simple.cabal
@@ -1,5 +1,5 @@
 name:           mysql-simple
-version:        0.4.7
+version:        0.4.7.1
 homepage:       https://github.com/paul-rouse/mysql-simple
 bug-reports:    https://github.com/paul-rouse/mysql-simple/issues
 synopsis:       A mid-level MySQL client library.
@@ -54,7 +54,7 @@
     pcre-light,
     old-locale,
     text >= 0.11.0.2,
-    time
+    time >= 1.5
   if !impl(ghc >= 8.0)
     build-depends:
       semigroups >= 0.11 && < 0.19