diff --git a/requirements-base1.txt b/requirements-base1.txt
index 054347f..cc4b746 100644
--- a/requirements-base1.txt
+++ b/requirements-base1.txt
@@ -1,4 +1,4 @@
-notebook==4.0.5
+notebook==6.4.12
 ipykernel==4.0.3
 Cython==0.23.1
 git+git://github.com/numpy/numpy.git@cee68d1e764711be671003e8d6e57c8049cee5ad#egg=numpy
diff --git a/requirements2.txt b/requirements2.txt
index adb31b9..2f192ec 100644
--- a/requirements2.txt
+++ b/requirements2.txt
@@ -20,7 +20,7 @@ mock==1.3.0
 nbconvert==4.0.0
 nbformat==4.0.0
 nose==1.3.7
-notebook==4.0.4
+notebook==6.4.12
 numpy==1.9.2
 path.py==8.1
 pbr==1.6.0