diff --git a/lint-chart.sh b/lint-chart.sh
index 1439110a..40ed7a76 100755
--- a/lint-chart.sh
+++ b/lint-chart.sh
@@ -6,8 +6,8 @@ echo "Linting $1..."
 echo "Running Helm lint..."
 helm lint --strict $1 | grep -vE "linted|Lint"
 helm template $1 > deployment.yaml
-# echo "Running kubeval lint..."
-# kubeval -v 1.19.15 -s https://raw.githubusercontent.com/yannh/kubernetes-json-schema/master < deployment.yaml | (grep -v " valid" || true)
+echo "Running kubeval lint..."
+kubeval -v 1.27.3 -s https://raw.githubusercontent.com/yannh/kubernetes-json-schema/master < deployment.yaml | (grep -v " valid" || true)
 echo "Running kubetest lint..."
 cat deployment.yaml | conftest test -
 echo "Yay, no errors when linting $1"
diff --git a/repos/testing/spark/Chart.yaml b/repos/testing/spark/Chart.yaml
index 528df521..3e2ad03b 100644
--- a/repos/testing/spark/Chart.yaml
+++ b/repos/testing/spark/Chart.yaml
@@ -1,7 +1,7 @@
 apiVersion: v1
 description: Apache Spark is a fast and general engine for big data processing.
 name: spark
-version: 0.10.22
+version: 0.10.23
 maintainers:
 - name: Sigma2 AS
   email: contact@sigma2.no
diff --git a/repos/testing/spark/README.md b/repos/testing/spark/README.md
index 7b7f2624..f3f46c56 100644
--- a/repos/testing/spark/README.md
+++ b/repos/testing/spark/README.md
@@ -14,7 +14,7 @@ and graph processing.
 
 ### Advanced
 This application creates a [Apache Spark](https://github.com/UninettSigma2/helm-charts/tree/master/repos/testing/spark) cluster using the following Dockerfile:
-  - [uninettSigma2/jupyter-spark](https://github.com/UninettSigma2/helm-charts-dockerfiles/tree/fbbf65f/jupyter-spark/Dockerfile)
+  - [uninettSigma2/jupyter-spark](https://github.com/UninettSigma2/helm-charts-dockerfiles/tree/d208ba8/jupyter-spark/Dockerfile)
 
 
 #### Values
diff --git a/repos/testing/spark/schema.yaml b/repos/testing/spark/schema.yaml
index 86eeb27b..e8de4cde 100644
--- a/repos/testing/spark/schema.yaml
+++ b/repos/testing/spark/schema.yaml
@@ -6,7 +6,7 @@ properties:
       dockerImage:
         type: string
         examples:
-        - quay.io/nird-toolkit/jupyter-spark:20220216-fbbf65f
+        - quay.io/nird-toolkit/jupyter-spark:20230816-d208ba8
       master:
         type: object
         properties:
@@ -76,7 +76,7 @@ properties:
           contact_email:
             type: string
             examples:
-            - example@uninett.no
+            - example@sigma2.no
       dataporten:
         type: object
         properties:
diff --git a/repos/testing/spark/values.yaml b/repos/testing/spark/values.yaml
index 8f4bb207..de7f4b7d 100644
--- a/repos/testing/spark/values.yaml
+++ b/repos/testing/spark/values.yaml
@@ -17,7 +17,7 @@ advanced:
       limits:
           cpu: "4"
           memory: 2G
-  dockerImage: quay.io/nird-toolkit/jupyter-spark:20220216-fbbf65f
+  dockerImage: quay.io/nird-toolkit/jupyter-spark:20230816-d208ba8
 
 uid: 999
 gid: 999
@@ -36,7 +36,7 @@ persistentStorage:
 
 appstore_generated_data:
   appstore_meta_data:
-    contact_email: "example@uninett.no"
+    contact_email: "example@sigma2.no"
   dataporten:
     scopes:
       - ""