diff --git a/apps/openproject/values.yaml b/apps/openproject/values.yaml
index b1b3106..3b999ef 100644
--- a/apps/openproject/values.yaml
+++ b/apps/openproject/values.yaml
@@ -10,7 +10,9 @@ openproject:
     auth:
       existingSecret: "openproject-s3-mapped"
     bucketName: "openproject"
-    endpoint: "http://rook-ceph-rgw-ceph-objectstore.rook-ceph.svc:80"
+    # Fog signs attachment URLs against this endpoint, so it must be reachable
+    # by both the OpenProject pods and external clients.
+    endpoint: "https://s3.noxxos.nl"
     pathStyle: true
     region: "us-east-1"
     
@@ -581,4 +583,4 @@ extraObjects:
           def days_left
             69
           end
-        end
\ No newline at end of file
+        end