diff --git a/src/backend/backend_base/requirements.txt b/src/backend/backend_base/requirements.txt
index 0021a99..e5631c7 100644
--- a/src/backend/backend_base/requirements.txt
+++ b/src/backend/backend_base/requirements.txt
@@ -2,7 +2,7 @@ matplotlib==3.1.1
 pandas==0.25.0
 Flask==1.1.2
 Flask-API==2.0
-Flask-Cors==3.0.8
+Flask-Cors==3.0.9
 Flask-PyMongo==2.3.0
 requests==2.21.0
 colorlog==4.1.0
diff --git a/src/backend/requirements.txt b/src/backend/requirements.txt
index 0021a99..e5631c7 100644
--- a/src/backend/requirements.txt
+++ b/src/backend/requirements.txt
@@ -2,7 +2,7 @@ matplotlib==3.1.1
 pandas==0.25.0
 Flask==1.1.2
 Flask-API==2.0
-Flask-Cors==3.0.8
+Flask-Cors==3.0.9
 Flask-PyMongo==2.3.0
 requests==2.21.0
 colorlog==4.1.0