diff --git a/.github/workflows/image.yml b/.github/workflows/image.yml
index f84c4c7c..e0a68122 100644
--- a/.github/workflows/image.yml
+++ b/.github/workflows/image.yml
@@ -4,7 +4,7 @@ on:
   push:
     branches:
       - nightly
-      - lts20
+      - lts21
 
 jobs:
   push: