diff --git a/pytesting/requirements.txt b/pytesting/requirements.txt
index 8921ef5..77f30e3 100644
--- a/pytesting/requirements.txt
+++ b/pytesting/requirements.txt
@@ -3,7 +3,7 @@ aiohttp==3.7.4
 bjoern==3.0.1
 cchardet==2.1.4
 Click==7.0
-Flask==1.1.1
+Flask==2.3.2
 pytest-flask==0.15.0
 json-logging==1.0.3
 numpy==1.22.0