diff --git a/requirements/requirements.txt b/requirements/requirements.txt
index 7439d7f349..6111ac92ae 100644
--- a/requirements/requirements.txt
+++ b/requirements/requirements.txt
@@ -31,6 +31,7 @@ django-statsd-mozilla==0.3.16
 django-taggit==0.17.6
 git+https://github.com/matburt/dm.xmlsec.binding.git@master#egg=dm.xmlsec.binding
 dogpile.core==0.4.1
+funcsigs==0.4
 gevent==1.1rc3
 gevent-websocket==0.9.3
 git+https://github.com/chrismeyersfsu/django-jsonfield.git@tower_0.9.12#egg=django-jsonfield
diff --git a/requirements/requirements_ansible.txt b/requirements/requirements_ansible.txt
index 7b8a9700ee..58b10f7fef 100644
--- a/requirements/requirements_ansible.txt
+++ b/requirements/requirements_ansible.txt
@@ -11,6 +11,7 @@ debtcollector==1.2.0
 decorator==4.0.6
 dogpile.core==0.4.1
 dogpile.cache==0.5.7
+funcsigs==0.4
 futures==3.0.4
 httplib2==0.9.2
 idna==2.0