diff -Nru haskell-authenticate-oauth-1.6/debian/changelog haskell-authenticate-oauth-1.6/debian/changelog
--- haskell-authenticate-oauth-1.6/debian/changelog	2017-12-20 13:08:32.000000000 +0000
+++ haskell-authenticate-oauth-1.6/debian/changelog	2018-01-25 18:56:48.000000000 +0000
@@ -1,3 +1,9 @@
+haskell-authenticate-oauth (1.6-2build4) bionic; urgency=medium
+
+  * Rebuild against new GHC ABI.
+
+ -- Gianfranco Costamagna <locutusofborg@debian.org>  Thu, 25 Jan 2018 19:56:48 +0100
+
 haskell-authenticate-oauth (1.6-2build3) bionic; urgency=medium
 
   * Rebuild against new GHC ABI.