diff --git a/requirements.txt b/requirements.txt
index 5c3e7ba..0f71dae 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ scikit-learn==0.21.3
 numpy==1.17.3
 scipy==1.3.1
 pandas==0.23.3
-flask==1.0.2
+flask==2.2.5
 flask-restful==0.3.6
 flask-cors==3.0.9
 flask-restful-swagger-2==0.35