diff --git a/requirements.txt b/requirements.txt
index 68bd257ddc67ae83c7edf35dbf901eee8495b2ff..f80703c20d7a60e2039dc36be5e815bfd0fdc094 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,7 +38,7 @@ requests==2.20.0
 zeep==3.1.0
 vatnumber==1.2
 vobject==0.9.3
-Werkzeug==0.11.15
+Werkzeug==0.14.1
 XlsxWriter==0.9.3
 xlwt==1.3.*
 xlrd==1.0.0