diff --git a/pkgs/development/libraries/haskell/clientsession/default.nix b/pkgs/development/libraries/haskell/clientsession/default.nix
index e670ff1a3d14..6cb8d26bd39a 100644
--- a/pkgs/development/libraries/haskell/clientsession/default.nix
+++ b/pkgs/development/libraries/haskell/clientsession/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "clientsession";
-  version = "0.9";
-  sha256 = "0cyw34vzvv1j7w094cjcf97g8bki7l9x82s8csaf96y6d9qws308";
+  version = "0.9.0.2";
+  sha256 = "0vl310nickavp8wkaad1wfnvm8gfsg9jcfw3rgjz7698avynv3ni";
   buildDepends = [
     base64Bytestring cereal cipherAes cprngAes cryptoApi entropy skein
     tagged