diff --git a/Code/V1/src/p300_service/requirements.txt b/Code/V1/src/p300_service/requirements.txt
index 27f6c5c3..396868cd 100644
--- a/Code/V1/src/p300_service/requirements.txt
+++ b/Code/V1/src/p300_service/requirements.txt
@@ -17,7 +17,7 @@ httptools==0.0.11
 idna==2.7
 idna-ssl==1.1.0
 itsdangerous==0.24
-Jinja2==2.10
+Jinja2==2.11.3
 joblib==0.12.5
 kiwisolver==1.0.1
 MarkupSafe==1.0