diff --git a/site-dev.yaml b/site-dev.yaml
index 01502af..585da53 100644
--- a/site-dev.yaml
+++ b/site-dev.yaml
@@ -15,7 +15,7 @@
     conductor_auth: oauth2
     conductor_server_name: conductor.dev.d4science.org
     conductor_ui_server_name: conductor-ui.dev.d4science.org
-    conductor_ui_public_url: "http://{{ conductor_ui_server_name }}"
+    conductor_ui_public_url: "https://{{ conductor_ui_server_name }}"
     conductor_replicas: 2
     conductor_ui_replicas: 2
 
diff --git a/site-pre.yaml b/site-pre.yaml
index aa5e4ce..640b86d 100644
--- a/site-pre.yaml
+++ b/site-pre.yaml
@@ -15,7 +15,7 @@
     conductor_auth: oauth2
     conductor_server_name: conductor.pre.d4science.org
     conductor_ui_server_name: conductor-ui.pre.d4science.org
-    conductor_ui_public_url: "http://{{ conductor_ui_server_name }}"
+    conductor_ui_public_url: "https://{{ conductor_ui_server_name }}"
     conductor_replicas: 2
     conductor_ui_replicas: 2
   roles:
diff --git a/site-prod.yaml b/site-prod.yaml
index 736a3bc..8e2b671 100644
--- a/site-prod.yaml
+++ b/site-prod.yaml
@@ -15,7 +15,7 @@
     conductor_auth: oauth2
     conductor_server_name: conductor.d4science.org
     conductor_ui_server_name: conductor-ui.d4science.org
-    conductor_ui_public_url: "http://{{ conductor_ui_server_name }}"
+    conductor_ui_public_url: "https://{{ conductor_ui_server_name }}"
     conductor_replicas: 2
     conductor_ui_replicas: 2
   roles: