diff --git a/requirements.txt b/requirements.txt
index 40f2122..798a20d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,4 +8,4 @@ MarkupSafe==0.23
 -e git+https://github.com/brendano/stanford_corenlp_pywrapper#egg=stanford_corenlp_pywrapper
 tornado==4.2
 urllib3==1.10.4
-Werkzeug==0.10.4
+Werkzeug==0.15.3