diff --git a/hedge_allocations/requirements.txt b/hedge_allocations/requirements.txt
index 07406028b..003aebce3 100644
--- a/hedge_allocations/requirements.txt
+++ b/hedge_allocations/requirements.txt
@@ -83,7 +83,7 @@ Mako==1.0.7
 Markdown==2.6.11
 MarkupSafe==0.23
 matplotlib==2.1.1
-mistune==0.7.4
+mistune==2.0.3
 mock==2.0.0
 mpmath==0.19
 msgpack-python==0.4.8