diff --git a/packages/backend/src/apps/slack/index.ts b/packages/backend/src/apps/slack/index.ts
index d9e88499..644c8135 100644
--- a/packages/backend/src/apps/slack/index.ts
+++ b/packages/backend/src/apps/slack/index.ts
@@ -1,7 +1,7 @@
 export default {
   name: 'Slack',
   key: 'slack',
-  iconUrl: './assets/favicon.svg',
+  iconUrl: '{BASE_URL}/apps/slack/assets/favicon.svg',
   authDocUrl: 'https://automatisch.io/docs/connections/slack',
   supportsConnections: true,
   baseUrl: 'https://slack.com/api',
diff --git a/packages/backend/src/apps/twitter/index.ts b/packages/backend/src/apps/twitter/index.ts
index b78d4872..0f0ef9a4 100644
--- a/packages/backend/src/apps/twitter/index.ts
+++ b/packages/backend/src/apps/twitter/index.ts
@@ -1,7 +1,7 @@
 export default {
   name: 'Twitter',
   key: 'twitter',
-  iconUrl: './assets/favicon.svg',
+  iconUrl: '{BASE_URL}/apps/twitter/assets/favicon.svg',
   authDocUrl: 'https://automatisch.io/docs/connections/twitter',
   supportsConnections: true,
   baseUrl: 'https://api.twitter.com',