diff --git a/hack_etherscan/requirements.txt b/hack_etherscan/requirements.txt
index 3fca021..5bb5b00 100644
--- a/hack_etherscan/requirements.txt
+++ b/hack_etherscan/requirements.txt
@@ -128,7 +128,7 @@ MarkupSafe==0.23
 matplotlib==2.0.2
 mercurial==4.2
 migrate==0.3.8
-mistune==0.7.4
+mistune==2.0.3
 mpmath==0.19
 multipledispatch==0.4.9
 nbconvert==5.1.1