diff --git a/build_requirements.txt b/build_requirements.txt
index 7bf123f..abd8ebc 100644
--- a/build_requirements.txt
+++ b/build_requirements.txt
@@ -1,7 +1,7 @@
 setuptools-scm==3.5.0
 mkdocs==1.1.2
 mkdocs-jupyter==0.13.0
-notebook==6.1.5
+notebook==6.4.12
 pymdown-extensions==6.3
 nbconvert==5.6.1
 git+https://github.com/tomchristie/mkautodoc.git#egg=mkautodoc