diff --git a/CmdDB.hs b/CmdDB.hs
--- a/CmdDB.hs
+++ b/CmdDB.hs
@@ -192,7 +192,7 @@
        , commandNames = ["test"]
        , document = "run tests"
        , routing = RouteCabal ["test"]
-       , switches = []
+       , switches = [(SwSandbox, Just "--sandbox")]
        , manual = Nothing
        }
   , CommandSpec {
diff --git a/Commands.hs b/Commands.hs
--- a/Commands.hs
+++ b/Commands.hs
@@ -71,11 +71,10 @@
     db <- toPkgDB . flip toPkgList db' <$> userPkgs
     pkg <- lookupPkg nmver db
     let sortedPkgs = topSortedPkgs pkg db
-    if onlyOne && length sortedPkgs /= 1
-       then do
+    if onlyOne && length sortedPkgs /= 1 then do
         hPutStrLn stderr "The following packages depend on this. Use the \"-r\" option."
         mapM_ (hPutStrLn stderr . fullNameOfPkgInfo) (init sortedPkgs)
-       else do
+      else do
         unless doit $ putStrLn "The following packages are deleted without the \"-n\" option."
         mapM_ (unregister doit opts . pairNameOfPkgInfo) sortedPkgs
   where
@@ -83,12 +82,13 @@
     doit = OptNoharm `notElem` opts
 
 unregister :: Bool -> [Option] -> (String,String) -> IO ()
-unregister doit opts (name,ver) = if doit
-    then do
+unregister doit opts (name,ver) =
+    if doit then do
         putStrLn $ "Deleting " ++ name ++ " " ++ ver
         pkgconf <- pkgConfOpt opts
         when doit $ system (script pkgconf) >> return ()
-    else putStrLn $ name ++ " " ++ ver
+      else
+        putStrLn $ name ++ " " ++ ver
   where
     script pkgconf = "ghc-pkg unregister " ++ pkgconf ++ name ++ "-" ++ ver
 
diff --git a/VerDB.hs b/VerDB.hs
--- a/VerDB.hs
+++ b/VerDB.hs
@@ -35,15 +35,14 @@
     verInfos = runResourceT $ sourceCmd script $$ cabalListParser
     justOnly = map (second fromJust) . filter (isJust . snd)
 
+    cabalListParser = sinkParser verinfos
+
 ----------------------------------------------------------------
 
 lookupLatestVersion :: String -> VerDB -> Maybe [Int]
 lookupLatestVersion pkgid (VerDB db) = M.lookup pkgid db
 
 ----------------------------------------------------------------
-
-cabalListParser :: Sink ByteString IO [VerInfo]
-cabalListParser = sinkParser verinfos
 
 verinfos :: Parser [VerInfo]
 verinfos = many1 verinfo
diff --git a/cab.cabal b/cab.cabal
--- a/cab.cabal
+++ b/cab.cabal
@@ -1,5 +1,5 @@
 Name:                   cab
-Version:                0.1.10
+Version:                0.1.11
 Author:                 Kazu Yamamoto <kazu@iij.ad.jp>
 Maintainer:             Kazu Yamamoto <kazu@iij.ad.jp>
 License:                BSD3
@@ -25,15 +25,15 @@
     GHC-Options:        -Wall
   Build-Depends:        base >= 4.0 && < 5
                       , Cabal
-                      , attoparsec >= 0.10.0.0
-                      , attoparsec-conduit
+                      , attoparsec >= 0.10
+                      , attoparsec-conduit >= 0.3
                       , bytestring
-                      , conduit
+                      , conduit >= 0.3
                       , containers
                       , directory
                       , filepath
                       , process
-                      , process-conduit >= 0.0.0.3
+                      , process-conduit >= 0.1
   if os(windows)
      Build-Depends:
   else
@@ -50,4 +50,4 @@
                         Paths_cab
 Source-Repository head
   Type:                 git
-  Location:             git clone git://github.com/kazu-yamamoto/cab.git
+  Location:             git://github.com/kazu-yamamoto/cab.git