diff --git a/postgres-embedded.cabal b/postgres-embedded.cabal
--- a/postgres-embedded.cabal
+++ b/postgres-embedded.cabal
@@ -1,5 +1,5 @@
 name:                postgres-embedded
-version:             0.1.4
+version:             0.1.5
 description:         Library for easily running embedded PostgreSQL server for tests
 homepage:            https://github.com/ilya-murzinov/postgres-embedded
 license:             MIT
@@ -18,7 +18,7 @@
   other-modules:       Database.PostgreSQL.Embedded.Postgres
                      , Database.PostgreSQL.Embedded.Download
                      , Database.PostgreSQL.Embedded.Types
-  build-depends:       base >= 4.7 && < 5
+  build-depends:       base >= 4 && < 5
                      , directory
                      , filepath
                      , shell-conduit
diff --git a/src/Database/PostgreSQL/Embedded/Postgres.hs b/src/Database/PostgreSQL/Embedded/Postgres.hs
--- a/src/Database/PostgreSQL/Embedded/Postgres.hs
+++ b/src/Database/PostgreSQL/Embedded/Postgres.hs
@@ -6,9 +6,7 @@
 
 import           Control.Concurrent                    (threadDelay)
 import           Control.Exception                     (SomeException, try)
-import           Data.Conduit.Shell                    (grep, rm, run, shell,
-                                                        ($|))
-import           Data.Conduit.Shell.Segments           (strings)
+import           Data.Conduit.Shell                    (rm, run, shell)
 import           Data.List                             (isInfixOf)
 import           Data.Monoid                           ((<>))
 import           System.FilePath.Posix                 ((</>))