diff --git a/tests/e2e/fixtures/simple-pypi/requirements.txt b/tests/e2e/fixtures/simple-pypi/requirements.txt
index acce997..ab0b00a 100644
--- a/tests/e2e/fixtures/simple-pypi/requirements.txt
+++ b/tests/e2e/fixtures/simple-pypi/requirements.txt
@@ -1,3 +1,3 @@
 requests==2.31.0
-flask==3.0.0
+flask==3.1.3
 pyyaml==6.0.1