diff --git a/dev-requirements.txt b/dev-requirements.txt
index 00e3736..1f80abc 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,4 +1,4 @@
-Flask-Cors==3.0.3
+Flask-Cors==3.0.9
 Flask-Testing==0.8.1
 pytest==6.2.1
 coveralls==2.2.0