diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+#### 0.7.3.5
+
+* Allow `attoparsec 0.13.*`
+
 #### 0.7.3.4
 
 * Fix compilation on GHC 7.2 and 7.4
diff --git a/json-schema.cabal b/json-schema.cabal
--- a/json-schema.cabal
+++ b/json-schema.cabal
@@ -1,5 +1,5 @@
 name:                json-schema
-version:             0.7.3.4
+version:             0.7.3.5
 synopsis:            Types and type classes for defining JSON schemas.
 description:         Types and type classes for defining JSON schemas.
                      .
@@ -45,8 +45,10 @@
     , time >= 1.2 && < 1.6
     , unordered-containers == 0.2.*
     , vector == 0.10.*
+  -- Data.Proxy.Proxy
   if impl(ghc < 7.8)
     build-depends: tagged >= 0.2 && < 0.9
+  -- GHC Generics
   if impl(ghc < 7.6)
     build-depends: ghc-prim == 0.2.*
 
@@ -63,7 +65,7 @@
       base >= 4.4 && < 5
     , aeson >= 0.7 && < 0.9
     , aeson-utils >= 0.2 && < 0.4
-    , attoparsec >= 0.10 && < 0.13
+    , attoparsec >= 0.10 && < 0.14
     , bytestring >= 0.10 && < 0.12
     , generic-aeson == 0.2.*
     , json-schema