diff --git a/requirements/edx-sandbox/base.txt b/requirements/edx-sandbox/base.txt
index d505492821..bc878d0d08 100644
--- a/requirements/edx-sandbox/base.txt
+++ b/requirements/edx-sandbox/base.txt
@@ -29,4 +29,4 @@ scipy==0.14.0
 singledispatch==3.4.0.3   # via tornado
 six==1.11.0
 sympy==0.7.1
-tornado==5.0.2            # via matplotlib
+tornado==5.1              # via matplotlib