diff --git a/starfish/REQUIREMENTS-STRICT.txt b/starfish/REQUIREMENTS-STRICT.txt
index eda66e668..abeac881d 100644
--- a/starfish/REQUIREMENTS-STRICT.txt
+++ b/starfish/REQUIREMENTS-STRICT.txt
@@ -42,7 +42,7 @@ kiwisolver==1.4.3
 MarkupSafe==2.1.1
 matplotlib==3.5.2
 matplotlib-inline==0.1.3
-mistune==0.8.4
+mistune==2.0.3
 mpmath==1.2.1
 nbclient==0.6.4
 nbconvert==6.5.0