diff --git a/backend/requirements.txt b/backend/requirements.txt
index 8b0e478..22f2b52 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -9,7 +9,7 @@ concurrent-log-handler==0.9.16
 Faker==8.0.0
 Flask==1.1.1
 Flask-BabelEx==0.9.3
-Flask-Cors==3.0.8
+Flask-Cors==3.0.9
 Flask-Login==0.4.1
 Flask-Mail==0.9.1
 flask-mongoengine==0.9.5
diff --git a/backend/requirements_mac.txt b/backend/requirements_mac.txt
index 47f4974..28bba7c 100644
--- a/backend/requirements_mac.txt
+++ b/backend/requirements_mac.txt
@@ -13,7 +13,7 @@ concurrent-log-handler==0.9.16
 Faker==8.0.0
 Flask==1.1.1
 Flask-BabelEx==0.9.3
-Flask-Cors==3.0.8
+Flask-Cors==3.0.9
 Flask-Login==0.4.1
 Flask-Mail==0.9.1
 flask-mongoengine==0.9.5
diff --git a/backend/requirements_win.txt b/backend/requirements_win.txt
index 633ee8c..57d2c02 100644
--- a/backend/requirements_win.txt
+++ b/backend/requirements_win.txt
@@ -9,7 +9,7 @@ concurrent-log-handler==0.9.16
 Faker==8.0.0
 Flask==1.1.1
 Flask-BabelEx==0.9.3
-Flask-Cors==3.0.8
+Flask-Cors==3.0.9
 Flask-Login==0.4.1
 Flask-Mail==0.9.1
 flask-mongoengine==0.9.5