Update requirements.txt

gkorland · web-flow · commit 913042915f22 · 2019-03-05T00:37:18.000+02:00
diff --git a/requirements.txt b/requirements.txt
@@ -2,3 +2,4 @@ redis>=2.10
 hiredis>=0.2.0
 rmtest>=0.2
 six>=1.10.0
+virtualenv>=16.4.3
