diff --git a/CHANGES b/CHANGES
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,9 @@
+Version 0.6.3.4 released 21 Dec 2018
+
+* Document git version requirement (#4).
+* Fix test suite failure when git not configured (#16).
+* Relax containers version bounds to support 0.6.* (Phil Ruffwind).
+
 Version 0.6.3.3 released 14 May 2018
 
 * Use build-type Simple (hvr).
diff --git a/Data/FileStore/Git.hs b/Data/FileStore/Git.hs
--- a/Data/FileStore/Git.hs
+++ b/Data/FileStore/Git.hs
@@ -13,6 +13,9 @@
    A versioned filestore implemented using git.
    Normally this module should not be imported: import
    "Data.FileStore" instead.
+
+   It is assumed that git >= 1.7.2 is available on
+   the system path.
 -}
 
 module Data.FileStore.Git
diff --git a/filestore.cabal b/filestore.cabal
--- a/filestore.cabal
+++ b/filestore.cabal
@@ -1,5 +1,5 @@
 Name:                filestore
-Version:             0.6.3.3
+Version:             0.6.3.4
 Cabal-Version:       >= 1.10
 Build-type:          Simple
 Synopsis:            Interface for versioning file stores.
@@ -30,7 +30,7 @@
 Library
     Build-depends:       base >= 4 && < 5,
                          bytestring >= 0.9 && < 1.0,
-                         containers >= 0.3 && < 0.6,
+                         containers >= 0.3 && < 0.7,
                          utf8-string >= 0.3 && < 1.1,
                          filepath >= 1.1 && < 1.5,
                          directory >= 1.0 && < 1.4,
@@ -64,7 +64,7 @@
     Hs-source-dirs: tests
     Main-is:        Tests.hs
     Default-Language:  Haskell98
-    Build-depends:  base >= 4 && < 5,
+    Build-depends:  base >= 4.7 && < 5,
                     HUnit >= 1.2 && < 1.7,
                     mtl,
                     time,
diff --git a/tests/Tests.hs b/tests/Tests.hs
--- a/tests/Tests.hs
+++ b/tests/Tests.hs
@@ -10,10 +10,13 @@
 import System.FilePath
 import Data.Algorithm.Diff (Diff(..))
 import System.Exit
+import System.Environment (setEnv)
 
 data FileStoreType = Darcs | Git | Mercurial deriving (Show, Eq)
 
 main = do
+  setEnv "GIT_AUTHOR_NAME" "Fake Name"
+  setEnv "GIT_AUTHOR_EMAIL" "fake.email@example.com"
   gc <- testFileStore (gitFileStore "tmp/gitfs") Git
   -- dc <- testFileStore (darcsFileStore "tmp/darcsfs") Darcs
   mc <- testFileStore (mercurialFileStore "tmp/mercurialfs") Mercurial