tox: hold pytest-mock to version 1.11.2, since 1.12 seems to be broken

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index d65984d53..8a8238bdc 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,7 +23,7 @@ deps =
     py{35,36,37}: mako==1.0.2
     py38: mako==1.0.8
     pytest==3.2.5
-    pytest-mock
+    pytest-mock==1.11.2
     pytest-pythonpath
     pytest-raises
     pytest-timeout==1.2.1