diff --git a/test-requirements.txt b/test-requirements.txt
index 6ad313e1ee..fd3a33e501 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -12,7 +12,7 @@ mock>=2.0 # BSD
 mox3>=0.7.0 # Apache-2.0
 PyMySQL>=0.6.2 # MIT License
 openstackdocstheme>=1.5.0 # Apache-2.0
-os-api-ref>=0.4.0 # Apache-2.0
+os-api-ref>=1.0.0 # Apache-2.0
 oslosphinx!=3.4.0,>=2.5.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
 qpid-python;python_version=='2.7' # Apache-2.0