diff --git a/requirements.txt b/requirements.txt
index 61066a1..de4ea9f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ jupyter-core==4.2.0
 Keras==1.1.2                                                                                                
 MarkupSafe==0.23                                                                                            
 matplotlib==1.5.3                                                                                           
-mistune==0.7.3                                                                                              
+mistune==0.8.1                                                                                              
 mock==2.0.0                                                                                                 
 nbconvert==4.2.0                                                                                            
 nbformat==4.1.0