diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0a747e6..7c18bee 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@ Changelog
 ## Version 1.7.0 -- Unreleased
 
 * Fix data type `EventMessage` to not export partial fields
+* Bump up min bound on time dep and fix deprecation warnings.
 
 ## Version 1.6.0
 
diff --git a/minio-hs.cabal b/minio-hs.cabal
index 708ba6d..1ac3120 100644
--- a/minio-hs.cabal
+++ b/minio-hs.cabal
@@ -118,7 +118,7 @@ common base-settings
                      , resourcet >= 1.2
                      , retry
                      , text >= 1.2
-                     , time >= 1.8
+                     , time >= 1.9
                      , transformers >= 0.5
                      , unliftio >= 0.2 && < 0.3
                      , unliftio-core >= 0.2 && < 0.3
diff --git a/src/Network/Minio/Data/Time.hs b/src/Network/Minio/Data/Time.hs
index c2699e4..2c5760c 100644
--- a/src/Network/Minio/Data/Time.hs
+++ b/src/Network/Minio/Data/Time.hs
@@ -27,6 +27,7 @@ where
 
 import Data.ByteString.Char8 (pack)
 import qualified Data.Time as Time
+import Data.Time.Format.ISO8601 (iso8601Show)
 import Lib.Prelude
 
 -- | Time to expire for a presigned URL. It interpreted as a number of
@@ -49,4 +50,4 @@ awsParseTime :: [Char] -> Maybe UTCTime
 awsParseTime = Time.parseTimeM False Time.defaultTimeLocale "%Y%m%dT%H%M%SZ"
 
 iso8601TimeFormat :: UTCTime -> [Char]
-iso8601TimeFormat = Time.formatTime Time.defaultTimeLocale (Time.iso8601DateFormat $ Just "%T%QZ")
+iso8601TimeFormat = iso8601Show
diff --git a/src/Network/Minio/XmlParser.hs b/src/Network/Minio/XmlParser.hs
index 7ab2178..06ce443 100644
--- a/src/Network/Minio/XmlParser.hs
+++ b/src/Network/Minio/XmlParser.hs
@@ -36,16 +36,13 @@ import Data.List (zip4, zip6)
 import qualified Data.Text as T
 import Data.Text.Read (decimal)
 import Data.Time
+import Data.Time.Format.ISO8601 (iso8601ParseM)
 import Lib.Prelude
 import Network.Minio.Data
 import Network.Minio.Errors
 import Text.XML
 import Text.XML.Cursor hiding (bool)
 
--- | Represent the time format string returned by S3 API calls.
-s3TimeFormat :: [Char]
-s3TimeFormat = iso8601DateFormat $ Just "%T%QZ"
-
 -- | Helper functions.
 uncurry4 :: (a -> b -> c -> d -> e) -> (a, b, c, d) -> e
 uncurry4 f (a, b, c, d) = f a b c d
@@ -57,8 +54,8 @@ uncurry6 f (a, b, c, d, e, g) = f a b c d e g
 parseS3XMLTime :: MonadIO m => Text -> m UTCTime
 parseS3XMLTime t =
   maybe (throwIO $ MErrVXmlParse $ "timestamp parse failure: " <> t) return $
-    parseTimeM True defaultTimeLocale s3TimeFormat $
-      T.unpack t
+    iso8601ParseM $
+      toString t
 
 parseDecimal :: (MonadIO m, Integral a) => Text -> m a
 parseDecimal numStr =