diff --git a/pkgs/python-packages.nix b/pkgs/python-packages.nix
--- a/pkgs/python-packages.nix
+++ b/pkgs/python-packages.nix
@@ -591,7 +591,7 @@
     name = "rhodecode-vcsserver-4.7.0";
     buildInputs = with self; [pytest py pytest-cov pytest-sugar pytest-runner pytest-catchlog pytest-profiling gprof2dot pytest-timeout mock WebTest cov-core coverage configobj];
     doCheck = true;
-    propagatedBuildInputs = with self; [Beaker configobj dulwich hgsubversion infrae.cache mercurial msgpack-python pyramid pyramid-jinja2 pyramid-mako repoze.lru simplejson subprocess32 subvertpy six translationstring WebOb wheel zope.deprecation zope.interface ipdb ipython gevent greenlet gunicorn waitress Pyro4 serpent pytest py pytest-cov pytest-sugar pytest-runner pytest-catchlog pytest-profiling gprof2dot pytest-timeout mock WebTest cov-core coverage];
+    propagatedBuildInputs = with self; [Beaker configobj decorator dulwich hgsubversion infrae.cache mercurial msgpack-python pyramid pyramid-jinja2 pyramid-mako repoze.lru simplejson subprocess32 subvertpy six translationstring WebOb wheel zope.deprecation zope.interface ipdb ipython gevent greenlet gunicorn waitress Pyro4 serpent pytest py pytest-cov pytest-sugar pytest-runner pytest-catchlog pytest-profiling gprof2dot pytest-timeout mock WebTest cov-core coverage];
     src = ./.;
     meta = {
       license = [ { fullName = "GPL V3"; } { fullName = "GNU General Public License v3 or later (GPLv3+)"; } ];