diff --git a/.github/workflows/validate-install-from-source.yml b/.github/workflows/validate-install-from-source.yml
index ff28dc85c2..bb9f7c1025 100644
--- a/.github/workflows/validate-install-from-source.yml
+++ b/.github/workflows/validate-install-from-source.yml
@@ -4,7 +4,7 @@ on:
   workflow_dispatch:
   push:
     branches:
-      - main
+      - test
 
 jobs:
   docker:
@@ -14,19 +14,19 @@ jobs:
       fail-fast: false
       matrix:
         vector:
-        - image: ubuntu
-        - image: debian:bullseye
-        - image: fedora
-        # Centos no longer officially maintains images on Docker Hub. However,
-        # tgagor is a contributor who pushes updated images weekly, which should
-        # be sufficient for our validation needs.
-        - image: tgagor/centos
-        - image: tgagor/centos-stream
-        - image: redhat/ubi8
-        - image: alpine
-        - image: opensuse/leap
-        - image: opensuse/tumbleweed
-        - image: registry.suse.com/suse/sle15:15.4.27.11.31
+          - image: ubuntu
+          - image: debian:bullseye
+          - image: fedora
+          # Centos no longer officially maintains images on Docker Hub. However,
+          # tgagor is a contributor who pushes updated images weekly, which should
+          # be sufficient for our validation needs.
+          - image: tgagor/centos
+          - image: tgagor/centos-stream
+          - image: redhat/ubi8
+          - image: alpine:latest
+          - image: opensuse/leap
+          - image: opensuse/tumbleweed
+          - image: registry.suse.com/suse/sle15:15.4.27.11.31
     container: ${{matrix.vector.image}}
     steps:
       - run: |