diff --git a/test-requirements.txt b/test-requirements.txt
index 79d702235..da2474ff0 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,6 +1,7 @@
 coverage!=4.4,>=4.0 # Apache-2.0
 ddt>=1.0.1 # MIT
 fixtures>=3.0.0 # Apache-2.0/BSD
+requests-mock>=1.2.0 # Apache-2.0
 stestr>=2.0.0 # Apache-2.0
 tempest>=17.1.0 # Apache-2.0
 testtools>=2.2.0 # MIT