diff --git a/Data/Conduit/ImageSize.hs b/Data/Conduit/ImageSize.hs
--- a/Data/Conduit/ImageSize.hs
+++ b/Data/Conduit/ImageSize.hs
@@ -22,14 +22,14 @@
 
 -- | Specialized version of 'sinkImageInfo' that returns only the
 -- image size.
-sinkImageSize :: Monad m => GLSink S.ByteString m (Maybe Size)
+sinkImageSize :: Monad m => Consumer S.ByteString m (Maybe Size)
 sinkImageSize = fmap (fmap fst) sinkImageInfo
 
 -- | Find out the size of an image.  Also returns the file format
 -- that parsed correctly.  Note that this function does not
 -- verify that the file is indeed in the format that it returns,
 -- since it looks only at a small part of the header.
-sinkImageInfo :: Monad m => GLSink S.ByteString m (Maybe (Size, FileFormat))
+sinkImageInfo :: Monad m => Consumer S.ByteString m (Maybe (Size, FileFormat))
 sinkImageInfo =
     start id
   where
@@ -92,7 +92,7 @@
 getInt :: (Monad m, Integral i)
        => Int
        -> i
-       -> Pipe S.ByteString S.ByteString o u m (Maybe i)
+       -> Consumer S.ByteString m (Maybe i)
 getInt 0 i = return $ Just i
 getInt len i = do
     mx <- CB.head
diff --git a/imagesize-conduit.cabal b/imagesize-conduit.cabal
--- a/imagesize-conduit.cabal
+++ b/imagesize-conduit.cabal
@@ -1,5 +1,5 @@
 Name:                imagesize-conduit
-Version:             0.5.0.2
+Version:             1.0.0
 Synopsis:            Determine the size of some common image formats.
 Description:         Currently supports PNG, GIF, and JPEG. This package provides a Sink that will consume the minimum number of bytes necessary to determine the image dimensions.
 License:             BSD3
@@ -18,7 +18,7 @@
 Library
   Exposed-modules:     Data.Conduit.ImageSize
   Build-depends:       base                     >= 4            && < 5
-                     , conduit                  >= 0.5          && < 0.6
+                     , conduit                  >= 1.0          && < 1.1
                      , bytestring               >= 0.9
   ghc-options:     -Wall