diff --git a/misc/requirements/requirements-tests.txt b/misc/requirements/requirements-tests.txt
index 0a5231cca..786bb7251 100644
--- a/misc/requirements/requirements-tests.txt
+++ b/misc/requirements/requirements-tests.txt
@@ -6,7 +6,7 @@ click==6.6
 coverage==4.2
 decorator==4.0.10
 EasyProcess==0.2.3
-Flask==0.11.1
+Flask==0.12
 glob2==0.5
 httpbin==0.5.0
 hypothesis==3.6.1