diff --git a/capstone/requirements.txt b/capstone/requirements.txt
index 7bef2fac..4a1eca73 100644
--- a/capstone/requirements.txt
+++ b/capstone/requirements.txt
@@ -36,7 +36,7 @@ mkl-random==1.0.2
 mock==2.0.0
 nbconvert==5.4.1
 nbformat==4.4.0
-notebook==5.7.8
+notebook==6.4.12
 numpy==1.16.2
 pandas==0.24.2
 pandocfilters==1.4.2