diff --git a/docker/Web2PDF-api/requirements.txt b/docker/Web2PDF-api/requirements.txt
index acd3a6c..5b1b64e 100644
--- a/docker/Web2PDF-api/requirements.txt
+++ b/docker/Web2PDF-api/requirements.txt
@@ -8,7 +8,7 @@ contextlib2==0.6.0
 distlib==0.3.0
 distro==1.4.0
 dropbox==10.3.0
-Flask==1.1.2
+Flask==2.3.2
 html5lib==1.0.1
 idna==2.8
 ipaddr==2.2.0