diff --git a/.github/actions/vintner-test/action.yaml b/.github/actions/vintner-test/action.yaml
index fa165079c3..496d404128 100644
--- a/.github/actions/vintner-test/action.yaml
+++ b/.github/actions/vintner-test/action.yaml
@@ -18,6 +18,10 @@ inputs:
 runs:
     using: 'composite'
     steps:
+        - name: (VINTNER) Sleep
+          shell: bash
+          run: sleep 5
+
         - name: (VINTNER) Test application
           if: ${{ inputs.env == 'OS' }}
           shell: bash
@@ -50,6 +54,6 @@ runs:
 
               echo "minikube ip: ${MINIKUBE_IP}"
 
-              curl --fail-with-body https://${MINIKUBE_IP}:${PORT}
+              curl --fail-with-body http://${MINIKUBE_IP}:${PORT}
           env:
               PORT: ${{ inputs.port }}
diff --git a/.github/workflows/case-study-unfurl-technology.yaml b/.github/workflows/case-study-unfurl-technology.yaml
index ab5bf79b82..867442be92 100644
--- a/.github/workflows/case-study-unfurl-technology.yaml
+++ b/.github/workflows/case-study-unfurl-technology.yaml
@@ -1,7 +1,7 @@
 name: Case Study "Unfurl Technology"
 on:
     workflow_dispatch:
-
+concurrency: unfurl-technology
 jobs:
     ###################################################
     #
@@ -183,8 +183,6 @@ jobs:
     openstack:
         name: OpenStack
         runs-on: ubuntu-22.04
-        # TODO: is working
-        if: false
         env:
             ORCHESTRATOR: unfurl
             EXAMPLE: unfurl-technology-conditional-quality-maintenance