diff --git a/config/clusters/opensci/small-binder.values.yaml b/config/clusters/opensci/small-binder.values.yaml
index 05ebcb3d7..418c55dea 100644
--- a/config/clusters/opensci/small-binder.values.yaml
+++ b/config/clusters/opensci/small-binder.values.yaml
@@ -62,6 +62,7 @@ jupyterhub:
     config:
       BinderSpawnerMixin:
         auth_enabled: false
+        cors_allow_origin: "*"
       JupyterHub:
         authenticator_class: "null"
     redirectToServer: false
@@ -103,6 +104,7 @@ binderhub-service:
       base_url: /
       hub_url: https://hub.binder.opensci.2i2c.cloud
       badge_base_url: https://binder.opensci.2i2c.cloud
+      cors_allow_origin: "*"
       image_prefix: quay.io/opensci-small-binder/binderhub-ui-
       auth_enabled: false
       enable_api_only_mode: false