diff --git a/README.md b/README.md
new file mode 100644
--- /dev/null
+++ b/README.md
@@ -0,0 +1,10 @@
+#Google-oauth-jwt
+
+Google-oauth-jwt implements the creation of the signed JWT for Google Service Accounts,
+to make authorized calls to Google APIs from server to server. All details here:
+
+- https://developers.google.com/identity/protocols/OAuth2ServiceAccount
+
+Advice: be sure that the machine time is well synchronized to successfully make the access token request and get a Bearer token.
+
+Improvements and bug reports are welcome!
diff --git a/google-oauth2-jwt.cabal b/google-oauth2-jwt.cabal
--- a/google-oauth2-jwt.cabal
+++ b/google-oauth2-jwt.cabal
@@ -1,5 +1,5 @@
 name:                google-oauth2-jwt
-version:             0.1.1.0
+version:             0.1.1.1
 synopsis:            Get a signed JWT for Google Service Accounts
 description:         Please see README.md
 homepage:            https://github.com/MichelBoucey/google-oauth2-jwt
@@ -10,23 +10,23 @@
 copyright:           Copyright (c) 2016 - Michel Boucey
 category:            Google
 build-type:          Simple
--- extra-source-files:
-cabal-version:       >=1.10
+extra-source-files:  README.md
+cabal-version:       >= 1.10
 
 library
   hs-source-dirs:      src
   exposed-modules:     Network.Google.OAuth2.JWT
   build-depends:       base >= 4.7 && < 5
-                     , base64-bytestring
-                     , bytestring
-                     , HsOpenSSL
-                     , RSA
-                     , text
-                     , unix-time
+                     , base64-bytestring >= 1.0.0.1
+                     , bytestring >= 0.10.6.0
+                     , HsOpenSSL >= 0.11.1.1
+                     , RSA >= 2.2.0
+                     , text >= 1.2.2.0
+                     , unix-time >= 0.3.6
   default-language:    Haskell2010
   GHC-options:       -Wall
 
 source-repository head
   type:     git
-  location: https://github.com/MichelBoucey/google-oauth2-jwt
+  location: git://github.com/MichelBoucey/google-oauth2-jwt.git