diff --git a/Text/CSL/Input/Identifier/Internal.hs b/Text/CSL/Input/Identifier/Internal.hs
--- a/Text/CSL/Input/Identifier/Internal.hs
+++ b/Text/CSL/Input/Identifier/Internal.hs
@@ -10,6 +10,7 @@
 
 import           Control.Applicative ((<$>))
 import           Control.Monad.IO.Class (liftIO)
+import           Control.Monad.Logger (runNoLoggingT)
 import           Control.Monad.Trans.Resource (runResourceT)
 import qualified Data.ByteString.Char8 as BS
 import           Data.Char (toLower)
@@ -56,13 +57,13 @@
 cached resolver0 url = do
   dbfn <- getDataFileName "reference.db3"
 
-  runResourceT $ withSqlitePool (Text.pack dbfn) 1 $ \pool -> do
+  runNoLoggingT $ runResourceT $  withSqlitePool (Text.pack dbfn) 1 $ \pool -> do
       flip runSqlPool pool $ runMigration migrateAll
       mx <- flip runSqlPool pool $ do
         selectFirst [WebCacheUrl ==. url] []
       case mx of
         Just x  -> do
-          return $ Right $  webCacheContent $ entityVal x
+          return $ Right $ webCacheContent $ entityVal x
 
         Nothing -> do
           ret <- liftIO $ resolver0 url
diff --git a/citation-resolve.cabal b/citation-resolve.cabal
--- a/citation-resolve.cabal
+++ b/citation-resolve.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                citation-resolve
-version:             0.2.3
+version:             0.2.4
 synopsis:            convert document IDs such as DOI, ISBN, arXiv ID to bibliographic reference.
 description:         
   This modules provides a way to convert document identifiers, such
@@ -47,9 +47,10 @@
                      , directory >= 1.2
                      , download-curl >= 0.1.4 
                      , MissingH >= 1.1
+                     , monad-logger >= 0.3.1.1
 --                   , hxt >= 9.3.1       -- TODO: treat xsl more properly 
 --                   , hxt-xslt >= 9.1.1  -- using these libraries.
-                     , persistent >= 1.1.4
+                     , persistent >= 1.2.0.2
                      , persistent-template >= 1.1.2
                      , persistent-sqlite >= 1.1.2
                      , process >= 1.1