diff --git a/requirements.txt b/requirements.txt
index 54b901fa906279a0d1357d616d55c25634850551..064cd4057ed82bba8988e37c607c2bca4f375102 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 lxml==4.4.2
 requests==2.22.0
-Flask==1.1.1
-Flask-Caching==1.8.0
+Flask==2.1.0
+Flask-Caching==2.0.1