diff --git a/Debian/Sources.hs b/Debian/Sources.hs
--- a/Debian/Sources.hs
+++ b/Debian/Sources.hs
@@ -307,7 +307,7 @@
 
 testSourcesListParse :: Test
 testSourcesListParse =
-    test [ assertEqual "" gutsy (mconcat . map (<> "\n") . map (render . pPrint) . parseSourcesList $ gutsy) ]
+    test [ assertEqual "" gutsy (concat . map (<> "\n") . map (render . pPrint) . parseSourcesList $ gutsy) ]
     where
       gutsy = concat ["deb http://us.archive.ubuntu.com/ubuntu/ gutsy main restricted universe multiverse\n",
                       "deb-src http://us.archive.ubuntu.com/ubuntu/ gutsy main restricted universe multiverse\n",
diff --git a/changelog b/changelog
--- a/changelog
+++ b/changelog
@@ -1,3 +1,9 @@
+haskell-debian (3.92.1) unstable; urgency=low
+
+  * Import mconcat for older base compatibility.
+
+ -- David Fox <dsf@foxthompson.net>  Wed, 12 Jul 2017 09:03:18 -0700
+
 haskell-debian (3.92) unstable; urgency=low
 
   * Support parsing of the option list in sources.list lines - see
diff --git a/debian.cabal b/debian.cabal
--- a/debian.cabal
+++ b/debian.cabal
@@ -1,5 +1,5 @@
 Name:           debian
-Version:        3.92
+Version:        3.92.1
 License:        BSD3
 License-File:   debian/copyright
 Author:         David Fox <dsf@seereason.com>, Jeremy Shaw <jeremy@seereason.com>, Clifford Beshers <beshers@seereason.com>
diff --git a/debian/changelog b/debian/changelog
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+haskell-debian (3.92.1) unstable; urgency=low
+
+  * Import mconcat for older base compatibility.
+
+ -- David Fox <dsf@foxthompson.net>  Wed, 12 Jul 2017 09:03:18 -0700
+
 haskell-debian (3.92) unstable; urgency=low
 
   * Support parsing of the option list in sources.list lines - see