diff -Nru haskell-http-types-0.9.1/debian/changelog haskell-http-types-0.9.1/debian/changelog
--- haskell-http-types-0.9.1/debian/changelog	2017-07-10 11:29:16.000000000 +0000
+++ haskell-http-types-0.9.1/debian/changelog	2017-07-15 17:36:09.000000000 +0000
@@ -1,3 +1,9 @@
+haskell-http-types (0.9.1-3build4) artful; urgency=medium
+
+  * Rebuild against new GHC ABI.
+
+ -- Gianfranco Costamagna <locutusofborg@debian.org>  Sat, 15 Jul 2017 19:36:09 +0200
+
 haskell-http-types (0.9.1-3build3) artful; urgency=medium
 
   * Rebuild against new GHC ABI.