diff --git a/test-requirements.txt b/test-requirements.txt
index 46ab5e6ee7..cd78cf976f 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -12,7 +12,6 @@ PyMySQL>=0.10.0 # MIT License
 psycopg2-binary>=2.8.5 # LGPL/ZPL
 
 requests-mock>=1.7.0 # Apache-2.0
-os-api-ref>=1.4.0 # Apache-2.0
 stestr>=3.0.1 # Apache-2.0
 testresources>=2.0.1 # Apache-2.0/BSD
 testscenarios>=0.4 # Apache-2.0/BSD