diff --git a/docs/requirements.txt b/docs/requirements.txt
index dcbd029..a858a28 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
 luigi
 m2r2
-mistune==0.8.4
+mistune==3.3.0
 sphinx_rtd_theme