diff --git a/Changelog.md b/Changelog.md
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,3 +1,7 @@
+# 1.2.5.1
+
+* Address deprecation warning from `attoparsec`.
+
 # 1.2.5
 
 * Increased upper bound `attoparsec`.
diff --git a/snap-cors.cabal b/snap-cors.cabal
--- a/snap-cors.cabal
+++ b/snap-cors.cabal
@@ -1,5 +1,5 @@
 name:                snap-cors
-version:             1.2.5
+version:             1.2.5.1
 synopsis:            Add CORS headers to Snap applications
 description:
   Add CORS (cross-origin resource sharing) headers to Snap applications. This
diff --git a/src/Snap/CORS.hs b/src/Snap/CORS.hs
--- a/src/Snap/CORS.hs
+++ b/src/Snap/CORS.hs
@@ -32,7 +32,7 @@
 import Network.URI (URI (..), URIAuth (..),  parseURI)
 
 import qualified Data.Attoparsec.Combinator as Attoparsec
-import qualified Data.Attoparsec.Char8 as Attoparsec
+import qualified Data.Attoparsec.ByteString.Char8 as Attoparsec
 import qualified Data.ByteString.Char8 as Char8
 import qualified Data.CaseInsensitive as CI
 import qualified Data.HashSet as HashSet