diff --git a/requirements.txt b/requirements.txt
index 4ba48bc..dfcd493 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ MarkupSafe==1.0
 PyNaCl==1.2.1
 PyYAML==3.12
 Pygments==2.2.0
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 asn1crypto==0.24.0
 backports.shutil-get-terminal-size==1.0.0
 bcrypt==3.1.4