diff --git a/Chart.yaml b/Chart.yaml
index a117acf..41add98 100644
--- a/Chart.yaml
+++ b/Chart.yaml
@@ -1,6 +1,6 @@
 name: fadi
-version: 0.1.20
-appVersion: 0.1.20
+version: 0.1.21
+appVersion: 0.1.21
 description: FADI is a Cloud Native platform for Big Data based on mature open source tools. 
 keywords:
   - fadi
diff --git a/requirements.yaml b/requirements.yaml
index 7e3b8f5..03df044 100644
--- a/requirements.yaml
+++ b/requirements.yaml
@@ -21,7 +21,7 @@ dependencies:
   repository: https://kubernetes-charts.storage.googleapis.com/
   condition: grafana.enabled
 - name: jupyterhub
-  version: ~0.8.0
+  version: ~0.8.2
   repository: https://jupyterhub.github.io/helm-chart/
   condition: jupyterhub.enabled
 - name: nifi
diff --git a/values.yaml b/values.yaml
index 7b89c5a..5bcd258 100644
--- a/values.yaml
+++ b/values.yaml
@@ -237,6 +237,10 @@ jupyterhub:
         description: "The Jupyter Stacks spark image"
         kubespawner_override:
           image: jupyter/all-spark-notebook:latest
+      - display_name: "tensorflow environment"
+        description: "TensorFlow Notebook"
+        kubespawner_override:
+          image: jupyter/tensorflow-notebook:latest
   # ---- auth ----
   auth:
     type: ldap