diff --git a/webapp/requirements.txt b/webapp/requirements.txt
index 5b614272..20ff66f9 100644
--- a/webapp/requirements.txt
+++ b/webapp/requirements.txt
@@ -1,4 +1,4 @@
-gunicorn
-Flask
-Jinja2
-Werkzeug
+Flask==2.0.3
+gunicorn==20.1.0
+Jinja2==3.0.3
+Werkzeug==2.0.3