diff --git a/.github/workflows/testExternalProjects.yml b/.github/workflows/testExternalProjects.yml
index e36909342..d82495d31 100644
--- a/.github/workflows/testExternalProjects.yml
+++ b/.github/workflows/testExternalProjects.yml
@@ -44,24 +44,39 @@ jobs:
           repository: ${{ inputs.externalProjectGit }}
       - name: Swap this dependency for the bundled version
         run: |
+          yarn install  --network-timeout 600000
           yarn remove @salesforce/core
           yarn add CristiCanizales/sfdx-core#${{ inputs.bundledBranch }}
-          cd node_modules/@salesforce/core
-          yarn install
+      - name: Add dependencies to bundle node_modules
+        run: |
+          yarn install  --network-timeout 600000
+          yarn add -D esbuild@^0.19.5 esbuild-plugin-pino@^2.1.0 npm-dts@^1.3.12 esbuild-plugin-tsc@^0.4.0
+        working-directory: node_modules/@salesforce/core
+      - name: Update for bundling
+        run: node scripts/updateForBundling.js
+        working-directory: node_modules/@salesforce/core
+      - name: Generate Bundle
+        run: |
           yarn build
-          cd ../../..
+          node scripts/build.js
+        working-directory: node_modules/@salesforce/core
+      - name: Post Bundling Update
+        run: |
+          node scripts/postBundlingUpdate.js
+        working-directory: node_modules/@salesforce/core
+      - name: Yarn deduplicate
+        run: |
           npx yarn-deduplicate
-          yarn install  --network-timeout 600000
       - name: Retrieve Scripts
         run: |
           git clone https://github.com/forcedotcom/bundle-publish-scripts.git
       - name: Update references for core bundle
         run: |
           node bundle-publish-scripts/scripts/updateForCoreBundle.js
-      - name: Run yarn install
-        uses: salesforcecli/github-workflows/.github/actions/yarnInstallWithRetries@main
-      - name: Remove scripts
-        run: rm -rf ./bundle-publish-scripts
+      - name: Update folder name
+        run: |
+          mv core core-bundle
+        working-directory: node_modules/@salesforce
       - name: Build the external project (where the tests are)
         run: yarn build
       - name: Run tests with ${{ inputs.attempts }} attempts
@@ -70,6 +85,3 @@ jobs:
           max_attempts: ${{ inputs.attempts }}
           command: yarn test
           retry_on: error
-        env:
-          SF_DISABLE_TELEMETRY: true
-          DEBUG: ${{ vars.DEBUG }}