diff --git a/requirements.txt b/requirements.txt
index 3cd1a71..4ce07f1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 scipy==1.2.0
 numpy==1.15.4
 plotly==3.10.0
-flask==1.1.0
+flask==2.3.2