diff --git a/config/requirements.txt b/config/requirements.txt
index c1808a2..d74ab0c 100644
--- a/config/requirements.txt
+++ b/config/requirements.txt
@@ -10,6 +10,7 @@ codecov
 diraccfg
 docutils
 elasticsearch-dsl>=6.0.0,<7.0.0
+flaky
 fts3-rest
 funcsigs
 future