diff --git a/requirements/prodaction.txt b/requirements/prodaction.txt
index ee9120d..cf61098 100644
--- a/requirements/prodaction.txt
+++ b/requirements/prodaction.txt
@@ -1,2 +1,3 @@
 - r base.txt
-psycopg2==2.6
\ No newline at end of file
+psycopg2==2.6
+gunicorn==19.4.5
\ No newline at end of file
diff --git a/requirements/staging.txt b/requirements/staging.txt
index ee9120d..cf61098 100644
--- a/requirements/staging.txt
+++ b/requirements/staging.txt
@@ -1,2 +1,3 @@
 - r base.txt
-psycopg2==2.6
\ No newline at end of file
+psycopg2==2.6
+gunicorn==19.4.5
\ No newline at end of file