diff --git a/Pipfile b/Pipfile
index e943dfc2..e8eec74c 100644
--- a/Pipfile
+++ b/Pipfile
@@ -25,7 +25,7 @@ redis = "~=2.10"
 requests = ">=2.20"
 rethinkdb = "==2.3"
 pickle-mixin = "==1.0.2"
-pytest-lazy-fixture = "*"
+pytest-lazy-fixture = "~=0.6.3"
 
 [dev-packages]