diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index d52e2ddeec0..cd9cad61d31 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2047,11 +2047,11 @@ in modules // {
 
   cornice = buildPythonPackage rec {
     name = "cornice-${version}";
-    version = "0.17.0";
+    version = "1.2.1";
     src = pkgs.fetchgit {
       url = https://github.com/mozilla-services/cornice.git;
       rev = "refs/tags/${version}";
-      sha256 = "11xgf7mddq9gm3yag61zj8hj2kgsgabrnzwn2zpfj37xp1p0pky7";
+      sha256 = "0688vrkl324jmpi8jkjh1s8nsyjinw149g3x8qlis8vz6j6a01wv";
     };
 
     propagatedBuildInputs = with self; [ pyramid simplejson ];