diff --git a/projects/reservoir/era5/requirements.txt b/projects/reservoir/era5/requirements.txt
index 7500dc6ab8..19af789ebf 100644
--- a/projects/reservoir/era5/requirements.txt
+++ b/projects/reservoir/era5/requirements.txt
@@ -90,7 +90,7 @@ rsa==4.9
 six==1.16.0
 sqlparse==0.4.4
 toolz==0.12.0
-tornado==6.3.2
+tornado==6.3.3
 typing_extensions==4.7.1
 tzdata==2023.3
 urllib3==1.26.16