diff --git a/requirements-gpu.txt b/requirements-gpu.txt
index e1f4f08..a76e905 100644
--- a/requirements-gpu.txt
+++ b/requirements-gpu.txt
@@ -39,7 +39,7 @@ mistune==0.8.4
 more-itertools==8.1.0
 nbconvert==5.6.1
 nbformat==5.0.3
-notebook==6.0.2
+notebook==6.4.1
 numpy==1.18.1
 oauthlib==3.1.0
 opt-einsum==3.1.0
diff --git a/requirements-macos-cpu.txt b/requirements-macos-cpu.txt
index 471568f..ab23385 100644
--- a/requirements-macos-cpu.txt
+++ b/requirements-macos-cpu.txt
@@ -27,7 +27,7 @@ Markdown==3.1.1
 MarkupSafe==1.1.1
 mistune==0.8.4
 nbconvert==5.6.1
-notebook==6.0.2
+notebook==6.4.1
 numpy>=1.18.1
 oauthlib==3.1.0
 pandocfilters==1.4.2
diff --git a/requirements-ubuntu-cpu.txt b/requirements-ubuntu-cpu.txt
index 17d5b80..8e792b1 100644
--- a/requirements-ubuntu-cpu.txt
+++ b/requirements-ubuntu-cpu.txt
@@ -39,7 +39,7 @@ mistune==0.8.4
 more-itertools==8.1.0
 nbconvert==5.6.1
 nbformat==5.0.3
-notebook==6.0.2
+notebook==6.4.1
 numpy==1.18.1
 oauthlib==3.1.0
 opt-einsum==3.1.0