diff --git a/.github/workflows/nextstrain-docker-base.yml b/.github/workflows/nextstrain-docker-base.yml
index df5b5de01..bdb970f27 100644
--- a/.github/workflows/nextstrain-docker-base.yml
+++ b/.github/workflows/nextstrain-docker-base.yml
@@ -6,13 +6,6 @@ on:
     types:
       - released
 
-  repository_dispatch:
-    types: nextstrain-docker-base
-
-  workflow_dispatch:
-
-  workflow_call:
-
   pull_request:
 
 concurrency: