diff --git a/requirements.txt b/requirements.txt
index cddc49b0..101c09b9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,8 @@ pecan>=0.4.5
 oslo.db>=4.27.0  # Apache-2.0
 oslo.log>=1.0.0
 pika>=0.9.14
-python3-openid
+python-openid ; python_version < '3.0'
+python3-openid ; python_version >= '3.0'
 PyYAML>=3.1.0
 requests>=1.1
 six>=1.7.0