diff --git a/reproducibility-updates/2019-04-10/analysis/jupyter/requirements.txt b/reproducibility-updates/2019-04-10/analysis/jupyter/requirements.txt
index 689a5f0..7b4bc84 100644
--- a/reproducibility-updates/2019-04-10/analysis/jupyter/requirements.txt
+++ b/reproducibility-updates/2019-04-10/analysis/jupyter/requirements.txt
@@ -18,7 +18,7 @@ jupyter-core==4.4.0
 kiwisolver==1.0.1
 MarkupSafe==1.0
 matplotlib==2.2.3
-mistune==0.8.3
+mistune==2.0.3
 nbconvert==5.3.1
 nbformat==4.4.0
 notebook==5.6.0