diff --git a/packages/source/ceilometer/ceilometer.egg-info/requires.txt b/packages/source/ceilometer/ceilometer.egg-info/requires.txt
index 6074a01..ed605ca 100644
--- a/packages/source/ceilometer/ceilometer.egg-info/requires.txt
+++ b/packages/source/ceilometer/ceilometer.egg-info/requires.txt
@@ -8,7 +8,7 @@ sqlalchemy-migrate>=0.7.2
 pymongo>=2.2
 eventlet
 anyjson>=0.3.3
-Flask==0.9
+Flask==1.0
 pecan>=0.2.0
 stevedore>=0.9
 msgpack-python
diff --git a/packages/source/ceilometer/doc/requirements.txt b/packages/source/ceilometer/doc/requirements.txt
index b2865a0..b038ddc 100644
--- a/packages/source/ceilometer/doc/requirements.txt
+++ b/packages/source/ceilometer/doc/requirements.txt
@@ -8,6 +8,6 @@ argparse
 sqlalchemy
 eventlet
 anyjson>=0.3.1
-Flask==0.9
+Flask==1.0
 sphinxcontrib-httpdomain
 pymongo>=2.2.1
diff --git a/packages/source/ceilometer/requirements.txt b/packages/source/ceilometer/requirements.txt
index e429f63..3c77aa7 100644
--- a/packages/source/ceilometer/requirements.txt
+++ b/packages/source/ceilometer/requirements.txt
@@ -9,7 +9,7 @@ sqlalchemy-migrate>=0.7.2
 pymongo>=2.2
 eventlet
 anyjson>=0.3.3
-Flask==0.9
+Flask==1.0
 pecan>=0.2.0
 stevedore>=0.9
 msgpack-python