diff --git a/.github/workflows/build-deploy.yml b/.github/workflows/build-deploy.yml
index 736c5ebc..2fad1d60 100644
--- a/.github/workflows/build-deploy.yml
+++ b/.github/workflows/build-deploy.yml
@@ -1,15 +1,14 @@
 name: build-deploy-bay-images
 run-name: Build and deploy Bay images
 on:
-  schedule:
-    - cron: '23 20 * * 0'
-  workflow_dispatch:
   pull_request:
-    branches:
-      - '5.x'
-  pull_request_target:
     types:
       - closed
+      - opened
+      - synchronize
+  schedule:
+    - cron: '23 20 * * 0'
+  workflow_dispatch:
 
 env:
   REGISTRY: ghcr.io
@@ -43,14 +42,14 @@ jobs:
           images: |
             ${{ env.REGISTRY }}/${{ github.repository }}/${{ matrix.images }}
           tags: |
-            type=ref,event=pr
-            type=ref,event=branch
-            type=raw,value={{github.event.pull_request.head.ref}},enable=${{ github.event.pull_request.merged == true }}
+            type=ref,event=pr,enable=${{ github.event.pull_request.merged == false }}
+            type=raw,value=${{ github.event.pull_request.base.ref }},enable=${{ github.event.pull_request.merged == true }}
+            type=ref,event=branch,enable=${{ contains(fromJson('["schedule", "workflow_dispatch"]'), github.event_name) }}
           labels: |
             maintainer=Digital Victoria
             repository=${{ github.repositoryUrl }}
             org.opencontainers.image.authors=Digital Victoria
-            org.opencontainers.image.source=https://github.com/${{ github.repository }}/tree/${{ github.ref_name }}/images/${{ matrix.images }}/Dockerfile
+            org.opencontainers.image.source=https://github.com/${{ github.repository }}/tree/${{ (contains(fromJson('["opened","synchronize"]'), github.event.action)) && github.head_ref || github.event.action == 'closed' && github.base_ref || github.ref_name }}/images/${{ matrix.images }}/Dockerfile
             org.opencontainers.image.title=${{ matrix.images }}
             org.opencontainers.image.description=${{ matrix.images }} image for Bay container platform
 
@@ -62,5 +61,4 @@ jobs:
             ./gh-actions-bake.hcl
             ${{ steps.meta.outputs.bake-file }}
           # Target the default group - probably unnecessary.
-          # Target the default group - branchobably unnecessary.
           targets: ${{ matrix.images }}
\ No newline at end of file
diff --git a/README.md b/README.md
index 6e0f347f..a370eb2e 100644
--- a/README.md
+++ b/README.md
@@ -75,12 +75,8 @@ Published images are scanned using Trivy and any CVEs identified are reported in
 ## Contribute
 [Open an issue](https://github.com/dpc-sdp/bay) on GitHub or submit a pull request with suggested changes.
 
-### Development Builds
-GitHub Actions is configured to automatically build images for pull requests that use the branch naming convention `build/<docker_image_tag>`. This will generate the tag `build-<docker_image_tag>`.
-
-For example
-
-`build/2.x-updated-cli` will generate the tag `build-2-x-updated-cli` and would be referenced as `ghcr.io/dpc-sdp/bay/<bay-image>:build-2-x-updated-cli`.
+### Development builds
+GitHub Actions is configured via the [build-deploy workflow](.github/workflows/build-deploy.yml) to build images for pull requests when they are opened and receive updates. These images are tagged with the PR number i.e. pr-86.
 
 ## Support
 [Digital Engagement, Department of Premier and Cabinet, Victoria, Australia](https://github.com/dpc-sdp)