diff --git a/speech-recognition/requirements.txt b/speech-recognition/requirements.txt
index 57e87d9..3042b97 100644
--- a/speech-recognition/requirements.txt
+++ b/speech-recognition/requirements.txt
@@ -31,7 +31,7 @@ jupyter-core==4.6.3
 lazy-object-proxy==1.4.3
 MarkupSafe==1.1.1
 mccabe==0.6.1
-mistune==0.8.4
+mistune==2.0.3
 nbconvert==5.6.1
 nbformat==5.0.7
 notebook==6.0.3