diff --git a/engine/validation-test/requirements.txt b/engine/validation-test/requirements.txt
index a8a1d16462..84b76a2e8d 100644
--- a/engine/validation-test/requirements.txt
+++ b/engine/validation-test/requirements.txt
@@ -1,4 +1,4 @@
-flake8==2.5.1
+flake8==7.0.0
 paramiko
 pytest==2.9.2
 pytest-xdist