diff --git a/charts/mint/Chart.yaml b/charts/mint/Chart.yaml
index 3d62d42..9dd4603 100644
--- a/charts/mint/Chart.yaml
+++ b/charts/mint/Chart.yaml
@@ -15,7 +15,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 3.3.1-alpha.1
+version: 3.3.1-alpha.3
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.
diff --git a/charts/mint/templates/model-catalog-endpoint.yaml b/charts/mint/templates/model-catalog-endpoint.yaml
index cfe723e..3987590 100644
--- a/charts/mint/templates/model-catalog-endpoint.yaml
+++ b/charts/mint/templates/model-catalog-endpoint.yaml
@@ -44,7 +44,7 @@ spec:
       initContainers:
         - name: volume-mount-hack
           image: busybox
-          command: ["sh", "-c", "chown -R 9008 /fuseki-base"]
+          command: ["sh", "-c", "chown -R 9008 /fuseki-base", '&&', 'find /fuseki-base -name tdb.lock -delete']
           volumeMounts:
             - name: db
               mountPath: /fuseki-base/databases
@@ -80,9 +80,11 @@ spec:
               path: /
               port: http
           readinessProbe:
-            httpGet:
-              path: /
-              port: http
+            exec:
+              command:
+              - /bin/sh
+              - -c
+              - curl -f http://localhost:3030/$/ping
       volumes:
         - name: config
           {{- if .Values.components.model_catalog_endpoint.persistence.enabled }}