diff --git a/ats-pkg.cabal b/ats-pkg.cabal
--- a/ats-pkg.cabal
+++ b/ats-pkg.cabal
@@ -1,5 +1,5 @@
 name:                ats-pkg
-version:             2.2.1.0
+version:             2.2.1.1
 synopsis:            A build tool for ATS
 description:         A collection of scripts to simplify building ATS projects.
 homepage:            https://github.com/vmchale/atspkg#readme
@@ -57,6 +57,7 @@
                      , shake-ext >= 2.3.0.0
                      , composition-prelude >= 1.1.0.2
                      , optparse-applicative
+                     , zip-archive
                      , temporary
                      , ansi-wl-pprint
                      , binary
diff --git a/src/Language/ATS/Package/Dependency.hs b/src/Language/ATS/Package/Dependency.hs
--- a/src/Language/ATS/Package/Dependency.hs
+++ b/src/Language/ATS/Package/Dependency.hs
@@ -8,6 +8,7 @@
                                        ) where
 
 import qualified Codec.Archive.Tar                    as Tar
+import           Codec.Archive.Zip                    (ZipOption (..), extractFilesFromArchive, toArchive)
 import qualified Codec.Compression.GZip               as Gzip
 import           Control.Concurrent.ParallelIO.Global
 import           Control.Lens
@@ -97,6 +98,17 @@
     | ".tar" `TL.isSuffixOf` s = pure id
     | otherwise = unrecognized (TL.unpack s)
 
+tarResponse :: Text -> FilePath -> ByteString -> IO ()
+tarResponse url' dirName response = do
+    compress <- getCompressor url'
+    let f = Tar.unpack dirName . Tar.read . compress
+    f response
+
+zipResponse :: FilePath -> ByteString -> IO ()
+zipResponse dirName response = do
+    let options = OptDestination dirName
+    extractFilesFromArchive [options] (toArchive response)
+
 buildHelper :: Bool -> ATSDependency -> IO ()
 buildHelper b (ATSDependency lib' dirName' url'' _) = do
 
@@ -112,8 +124,9 @@
         response <- responseBody <$> httpLbs (initialRequest { method = "GET" }) manager
 
         putStrLn ("Unpacking library " ++ lib ++ "...")
-        compress <- getCompressor url''
-        Tar.unpack dirName . Tar.read . compress $ response
+        if "zip" `TL.isSuffixOf` url'' then
+            zipResponse dirName response
+                else tarResponse url'' dirName response
 
         needsMove <- doesDirectoryExist (dirName ++ "/package")
         when needsMove $ do
diff --git a/src/Language/ATS/Package/Upgrade.hs b/src/Language/ATS/Package/Upgrade.hs
--- a/src/Language/ATS/Package/Upgrade.hs
+++ b/src/Language/ATS/Package/Upgrade.hs
@@ -16,6 +16,7 @@
 import           System.Info
 import           System.Posix.Files
 
+-- https://github.com/vmchale/atspkg/archive/master.zip
 manufacturer :: String
 manufacturer = case os of
     "darwin" -> "apple"