diff -ruN orig/imagesize-conduit.cabal new/imagesize-conduit.cabal
--- orig/imagesize-conduit.cabal	2014-08-27 18:36:43.889176341 +0300
+++ new/imagesize-conduit.cabal	2014-08-27 18:36:43.000000000 +0300
@@ -21,7 +21,7 @@
 Library
   Exposed-modules:     Data.Conduit.ImageSize
   Build-depends:       base                     >= 4            && < 5
-                     , conduit                  >= 1.1          && < 1.2
+                     , conduit                  >= 1.1          && < 1.3
                      , conduit-extra            >= 1.1          && < 1.2
                      , bytestring               >= 0.10
   ghc-options:     -Wall