diff --git a/.github/workflows/publish-image.yml b/.github/workflows/publish-image.yml
index f233a39..c6e8399 100644
--- a/.github/workflows/publish-image.yml
+++ b/.github/workflows/publish-image.yml
@@ -2,9 +2,9 @@ name: Create and publish a container image
 
 on:
   push:
-    branches: [ "master" ]
+    branches: [ "main" ]
   pull_request:
-    branches: [ "master" ]
+    branches: [ "main" ]
 
 env:
   REGISTRY: ghcr.io