diff --git a/requirements.txt b/requirements.txt
index e69de29..3c80997 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -0,0 +1,6 @@
+pbr!=2.1.0,>=2.0.0 # Apache-2.0
+Flask!=0.11,>=1.0.2  # BSD
+Flask-RESTful>=0.3.5  # BSD
+oslo.config>=5.2.0 # Apache-2.0
+oslo.db>=4.27.0 # Apache-2.0
+oslo.policy>=1.44.1 # Apache-2.0
\ No newline at end of file