diff --git a/requirements.txt b/requirements.txt
index f0206245..2a4ed62c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ click==6.7
 decorator==4.0.6
 ecdsa==0.13.2
 fanstatic==0.12
-flask==0.12.4
+flask==2.3.2
 FormEncode==1.3.0
 funcsigs==1.0.2
 future==0.17.1