diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,8 @@
 # ats-pkg
 
-## 3.4.0.5
+## 3.4.0.4
 
-  * Pin Dhall package
-  * More sensible verbosity across shake/atspkg
+  * Drop `.bz2` decompression; support GHC 8.8.1
 
 ## 3.4.0.3
 
diff --git a/app/Main.hs b/app/Main.hs
--- a/app/Main.hs
+++ b/app/Main.hs
@@ -264,7 +264,7 @@
           x = [buildAll v mStr tgt Nothing]
 
 run :: Command -> IO ()
-run List                               = displayList "https://raw.githubusercontent.com/vmchale/atspkg/baac3c7bdcb0d617fba43818dbb66da554092039/ats-pkg/pkgs/pkg-set.dhall sha256:a16dc6b6d4d803a90682ec4e105a568a3c57bea8369fab6befccb9e6d203c615"
+run List                                   = displayList "https://raw.githubusercontent.com/vmchale/atspkg/master/ats-pkg/pkgs/pkg-set.dhall"
 run (Check p b)                            = void $ ($ Version [0,1,0]) <$> checkPkg p b
 run (CheckSet p b)                         = void $ checkPkgSet p b
 run Upgrade                                = upgradeBin "vmchale" "atspkg"
diff --git a/ats-pkg.cabal b/ats-pkg.cabal
--- a/ats-pkg.cabal
+++ b/ats-pkg.cabal
@@ -1,6 +1,6 @@
 cabal-version:      2.0
 name:               ats-pkg
-version:            3.4.0.5
+version:            3.4.0.6
 license:            BSD3
 license-file:       LICENSE
 copyright:          Copyright: (c) 2018-2019 Vanessa McHale
@@ -110,7 +110,7 @@
         filepath -any,
         microlens -any,
         ansi-wl-pprint -any,
-        shake >=0.17,
+        shake >=0.18.4,
         bytestring -any,
         composition-prelude >=1.3.0.3,
         binary -any,
diff --git a/dhall/config.dhall b/dhall/config.dhall
--- a/dhall/config.dhall
+++ b/dhall/config.dhall
@@ -1,8 +1,7 @@
-let commit = "baac3c7bdcb0d617fba43818dbb66da554092039"
-let hash = ""
+let version = "master"
 in
 
-{ defaultPkgs = "https://raw.githubusercontent.com/vmchale/atspkg/${commit}/ats-pkg/pkgs/pkg-set.dhall sha256:a16dc6b6d4d803a90682ec4e105a568a3c57bea8369fab6befccb9e6d203c615"
+{ defaultPkgs = "https://raw.githubusercontent.com/vmchale/atspkg/${version}/ats-pkg/pkgs/pkg-set.dhall"
 , path = (None Text)
 , githubUsername = ""
 , filterErrors = False
diff --git a/internal/System/Process/Ext.hs b/internal/System/Process/Ext.hs
--- a/internal/System/Process/Ext.hs
+++ b/internal/System/Process/Ext.hs
@@ -7,7 +7,7 @@
 import           System.Process
 
 verbosityErr :: Verbosity -> StdStream
-verbosityErr v | v >= Loud = Inherit
+verbosityErr v | v >= Verbose = Inherit
 verbosityErr _ = CreatePipe
 
 handleExit :: ExitCode -> IO ()
@@ -15,7 +15,7 @@
 handleExit x           = exitWith x
 
 silentCreateProcess :: Verbosity -> CreateProcess -> IO ()
-silentCreateProcess v proc' | v >= Chatty = do
+silentCreateProcess v proc' | v >= Verbose = do
     (_, _, _, r) <- createProcess (proc' { std_err = verbosityErr v, std_out = Inherit })
     handleExit =<< waitForProcess r
 silentCreateProcess v proc' = void $ readCreateProcess (proc' { std_err = verbosityErr v }) ""
diff --git a/man/atspkg.1 b/man/atspkg.1
--- a/man/atspkg.1
+++ b/man/atspkg.1
@@ -1,4 +1,4 @@
-.\" Automatically generated by Pandoc 2.8.1
+.\" Automatically generated by Pandoc 2.9
 .\"
 .TH "atspkg (1)" "" "" "" ""
 .hy
diff --git a/src/Language/ATS/Package/Build.hs b/src/Language/ATS/Package/Build.hs
--- a/src/Language/ATS/Package/Build.hs
+++ b/src/Language/ATS/Package/Build.hs
@@ -174,10 +174,8 @@
 
 toVerbosity :: Int -> Verbosity
 toVerbosity 0 = Info
-toVerbosity 1 = Info
-toVerbosity 2 = Info
-toVerbosity 3 = Verbose
-toVerbosity 4 = Diagnostic
+toVerbosity 1 = Verbose
+toVerbosity 2 = Diagnostic
 toVerbosity _ = Diagnostic -- should be a warning
 
 options :: Bool -- ^ Whether to rebuild all targets
diff --git a/src/Language/ATS/Package/Compiler.hs b/src/Language/ATS/Package/Compiler.hs
--- a/src/Language/ATS/Package/Compiler.hs
+++ b/src/Language/ATS/Package/Compiler.hs
@@ -20,7 +20,6 @@
 import           Data.FileEmbed
 import qualified Development.Shake.Check as Check
 import           Network.HTTP.Client     hiding (decompress)
-import           Network.HTTP.Client.TLS (tlsManagerSettings)
 import           Quaalude
 import           System.FilePath.Find    (find)
 
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
@@ -10,7 +10,6 @@
 -- import           Codec.Archive                        as Archive
 import qualified Codec.Archive.Tar                    as Tar
 import           Codec.Archive.Zip                    (ZipOption (..), extractFilesFromArchive, toArchive)
-import qualified Codec.Compression.BZip               as Bzip
 import qualified Codec.Compression.GZip               as Gzip
 import qualified Codec.Compression.Lzma               as Lzma
 import           Control.Concurrent.ParallelIO.Global
@@ -102,7 +101,6 @@
     | ".tar.gz" `TL.isSuffixOf` s || ".tgz" `TL.isSuffixOf` s = pure Gzip.decompress
     | ".tar" `TL.isSuffixOf` s = pure id
     | ".tar.xz" `TL.isSuffixOf` s = pure Lzma.decompress
-    | ".tar.bz2" `TL.isSuffixOf` s = pure Bzip.decompress
     | otherwise = unrecognized (unpack s)
 
 tarResponse :: Text -> FilePath -> ByteString -> IO ()