diff --git a/tools/zircolite_server/requirements.txt b/tools/zircolite_server/requirements.txt
index d380287..1c40fd4 100644
--- a/tools/zircolite_server/requirements.txt
+++ b/tools/zircolite_server/requirements.txt
@@ -1,4 +1,4 @@
-flask>=1.1.2
-jinja2>=2.11.3
+flask>=2.2.5
+jinja2>=3.1.4
 werkzeug>=3.0.3 # not directly required, pinned by Snyk to avoid a vulnerability
 zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability