diff --git a/changelog b/changelog
--- a/changelog
+++ b/changelog
@@ -1,3 +1,6 @@
+0.7.0.3
+* Add attoparsec dependency
+
 0.7.0.2
 * Bump blaze-builder dependency
 
diff --git a/groundhog.cabal b/groundhog.cabal
--- a/groundhog.cabal
+++ b/groundhog.cabal
@@ -1,5 +1,5 @@
 name:            groundhog
-version:         0.7.0.2
+version:         0.7.0.3
 license:         BSD3
 license-file:    LICENSE
 author:          Boris Lykah <lykahb@gmail.com>
@@ -22,6 +22,7 @@
                    , transformers             >= 0.2.1      && < 0.5
                    , mtl                      >= 2.0
                    , time                     >= 1.1.4
+                   , attoparsec               >= 0.11
                    , aeson                    >= 0.5
                    , scientific
                    , text                     >= 0.8