diff --git a/requirements.txt b/requirements.txt
index 96a331a..664ebcf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-Flask==1.1.1
+Flask==2.3.2
 slackclient==2.5.0
 slackeventsapi==2.1.0