diff --git a/src/Yesod/MangoPay.hs b/src/Yesod/MangoPay.hs
--- a/src/Yesod/MangoPay.hs
+++ b/src/Yesod/MangoPay.hs
@@ -89,7 +89,7 @@
         Nothing -> fail "getValidToken: You need to provide the cClientSecret on the mpCredentials."
         Just secret-> do
           oat<-runMangoPayT creds manager apoint $
-                  oauthLogin (cClientID creds) secret
+                  oauthLogin (cClientId creds) secret
           ct<-Y.liftIO getCurrentTime
           -- oaExpires is in second, remove one minute for safety
           let expires=addUTCTime (fromIntegral (oaExpires oat - 60)) ct
@@ -184,4 +184,3 @@
 -- Instances for MangoPay types that may be useful in a Persistent/Yesod context
 
 $(derivePersistField "KindOfAuthentication")
-
diff --git a/yesod-mangopay.cabal b/yesod-mangopay.cabal
--- a/yesod-mangopay.cabal
+++ b/yesod-mangopay.cabal
@@ -1,5 +1,5 @@
 name:           yesod-mangopay
-version:        1.7.1
+version:        1.9
 cabal-version:  >= 1.8
 build-type:     Simple
 author:         JP Moresmau <jpmoresmau@gmail.com>
@@ -37,7 +37,7 @@
     hs-source-dirs:    src
     build-depends:
                    base         >= 4      && < 5
-                 , mangopay     == 1.8.*
+                 , mangopay     == 1.9.*
                  , containers   >= 0.5    && < 0.6
                  , http-conduit >= 2.0    && < 2.2
                  , http-types   >= 0.8.2  && < 0.9