diff --git a/conda_requirements.txt b/conda_requirements.txt
index d2ac2df..c33e66e 100644
--- a/conda_requirements.txt
+++ b/conda_requirements.txt
@@ -22,7 +22,7 @@ lxml==3.6.0
 MarkupSafe==0.23
 matplotlib==1.5.1
 mistune==0.7.2
-nbconvert==4.2.0
+nbconvert==6.5.1
 nbformat==4.0.1
 ndg_httpsclient
 notebook==4.2.0
diff --git a/py3_requirements.txt b/py3_requirements.txt
index 9161a23..337f7fe 100644
--- a/py3_requirements.txt
+++ b/py3_requirements.txt
@@ -28,7 +28,7 @@ lxml==3.6.0
 MarkupSafe==0.23
 matplotlib==1.5.1
 mistune==0.7.2
-nbconvert==4.2.0
+nbconvert==6.5.1
 nbformat==4.0.1
 ndg-httpsclient==0.4.0
 notebook==4.2.0
diff --git a/py3_server_requirements.txt b/py3_server_requirements.txt
index c870d1e..36c36df 100644
--- a/py3_server_requirements.txt
+++ b/py3_server_requirements.txt
@@ -38,7 +38,7 @@ MarkupSafe==0.23
 matplotlib==1.5.1
 mccabe==0.5.0
 multiprocess==0.70.4
-nbconvert==4.2.0
+nbconvert==6.5.1
 nbformat==4.0.1
 ndg-httpsclient==0.4.0
 nose==1.3.7
diff --git a/requirements.txt b/requirements.txt
index ec17770..a658544 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ lxml==3.6.0
 MarkupSafe==0.23
 matplotlib==1.5.1
 mistune==0.7.2
-nbconvert==4.2.0
+nbconvert==6.5.1
 nbformat==4.0.1
 ndg-httpsclient==0.4.0
 notebook==4.2.0