diff --git a/requirements.txt b/requirements.txt
index 7f56a60..8ae549d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,4 +19,4 @@ biopython==1.75
 SPARQLWrapper==1.8.4
 PyJWT==1.7.1
 psycopg2==2.8.3
-Werkzeug==0.15.3
+Werkzeug==0.15.5