diff --git a/pkgs/development/python-modules/twitter-common-lang/default.nix b/pkgs/development/python-modules/twitter-common-lang/default.nix
index 53135a94d62..59f6d74ad67 100644
--- a/pkgs/development/python-modules/twitter-common-lang/default.nix
+++ b/pkgs/development/python-modules/twitter-common-lang/default.nix
@@ -5,11 +5,11 @@
 
 buildPythonPackage rec {
   pname   = "twitter.common.lang";
-  version = "0.3.10";
+  version = "0.3.11";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "9cd2d05a7f45c50c76c99024b3cad180bec42b0c65dfdc1f8ddc731bdd3b3af8";
+    sha256 = "6e967ca2b5bb96ea749d21052f45b18e37deb5cc160eb12c64a8f1cb9dba7a22";
   };
 
   meta = with stdenv.lib; {