diff --git a/ner_environment/requirements.txt b/ner_environment/requirements.txt
index 58e9a7d4..4a3d11a3 100644
--- a/ner_environment/requirements.txt
+++ b/ner_environment/requirements.txt
@@ -5,3 +5,4 @@ pyserial
 typer
 matplotlib
 rich
+Jinja2