diff --git a/test/acceptance/requirements.txt b/test/acceptance/requirements.txt
index 882951e..55d1876 100644
--- a/test/acceptance/requirements.txt
+++ b/test/acceptance/requirements.txt
@@ -1,6 +1,6 @@
 lettuce==0.2.20
 fabric==1.10.0
-flask==1.0.0         # blindly changing from 0.12.3 due to a github vulnerability warning, not yet tested...
+flask==2.3.2         # blindly changing from 0.12.3 due to a github vulnerability warning, not yet tested...
 requests==2.20.0
 colorama==0.2.5
 paramiko==2.10.1     # blindly changing from 2.0.9 due to a github vulnerability warning, not yet tested...