diff --git a/server-for-extension/requirements.txt b/server-for-extension/requirements.txt
index da20d90..eb3cf3b 100644
--- a/server-for-extension/requirements.txt
+++ b/server-for-extension/requirements.txt
@@ -7,7 +7,7 @@ chardet==3.0.4
 click==7.1.1
 docutils==0.15.2
 Flask==1.1.2
-Flask-Cors==3.0.8
+Flask-Cors==3.0.9
 gensim==3.8.2
 idna==2.9
 itsdangerous==1.1.0