diff --git a/changelog b/changelog
--- a/changelog
+++ b/changelog
@@ -1,3 +1,7 @@
+0.1.1.4:
+
+  * Remove redundant with base-4.11 monoid import.
+
 0.1.1.3:
 
   * Drop upper bounds entirely.
diff --git a/soap-tls.cabal b/soap-tls.cabal
--- a/soap-tls.cabal
+++ b/soap-tls.cabal
@@ -1,5 +1,5 @@
 name:                soap-tls
-version:             0.1.1.2
+version:             0.1.1.4
 synopsis:            TLS-enabled SOAP transport (using tls package)
 description:
   TLS-enabled SOAP transport (using tls package)
@@ -16,28 +16,29 @@
 license-file:        LICENSE
 author:              Alexander Bondarenko
 maintainer:          aenor.realm@gmail.com
--- copyright:           
+-- copyright:
 category:            Web
 build-type:          Simple
 cabal-version:       >=1.10
-extra-source-files:  
+extra-source-files:
   changelog
 
 library
   ghc-options:         -Wall
   exposed-modules:     Network.SOAP.Transport.HTTP.TLS
-  build-depends:       base >=4.6 && <5
-                     , soap >= 0.2.2
-                     , http-client >= 0.2
-                     , http-client-tls >= 0.2
-                     , tls >= 1.2
-                     , connection >= 0.2
-                     , x509
-                     , x509-store
-                     , x509-validation
-                     , text
-                     , configurator
-                     , data-default
+  build-depends:
+      base            >= 4.8 && <5
+    , soap            >= 0.2.2 && < 0.3
+    , configurator    >= 0.3 && < 1.0
+    , connection      >= 0.2.5 && < 0.3
+    , data-default    >= 0.5.3 && < 1.0
+    , http-client     >= 0.2 && < 1.0
+    , http-client-tls >= 0.2.4 && < 0.4
+    , text            >= 1.2.2.1 && < 1.3
+    , tls             >= 1.3.8 && < 2.0
+    , x509            >= 1.6.3 && < 2.0
+    , x509-store      >= 1.6.1 && < 2.0
+    , x509-validation >= 1.6.3 && < 2.0
 
   hs-source-dirs:      src
   default-language:    Haskell2010
diff --git a/src/Network/SOAP/Transport/HTTP/TLS.hs b/src/Network/SOAP/Transport/HTTP/TLS.hs
--- a/src/Network/SOAP/Transport/HTTP/TLS.hs
+++ b/src/Network/SOAP/Transport/HTTP/TLS.hs
@@ -18,7 +18,6 @@
 import Data.X509.Validation
 import Network.Connection (TLSSettings(..))
 
-import           Data.Monoid
 import           Data.Text (Text)
 import           Data.Default (def)
 import qualified Data.Configurator as Conf
@@ -36,8 +35,8 @@
               -> ServerCertCallback
               -> IO Transport
 confTransport section conf onSC = do
-    cert <- Conf.lookup conf (section <> ".client_cert")
-    key <- Conf.lookup conf (section <> ".client_key")
+    cert <- Conf.lookup conf (section `mappend` ".client_cert")
+    key <- Conf.lookup conf (section `mappend` ".client_key")
     settings <- makeSettings cert key onSC
     confTransportWith settings section conf id id