diff --git a/Vagrantfile b/Vagrantfile
index 2f965ac..3dfb4ec 100644
--- a/Vagrantfile
+++ b/Vagrantfile
@@ -8,7 +8,7 @@ VAGRANTFILE_API_VERSION = "2"
 CPUS = 4
 
 # Customize the amount of memory on the VM
-MEMORY = ENV.fetch("VM_SIZE", "8192").to_i
+MEMORY = ENV.fetch("VM_SIZE", "12288").to_i
 
 # Every Vagrant development environment requires a box. You can search for
 # boxes at https://vagrantcloud.com/search.
diff --git a/zuul.d/jobs.yaml b/zuul.d/jobs.yaml
index f0211f3..5f2a8d3 100644
--- a/zuul.d/jobs.yaml
+++ b/zuul.d/jobs.yaml
@@ -89,9 +89,9 @@
       test_log_debug: true
       test_case_timeout: 1800
       tobiko_dir: '/opt/stack/tobiko'
-      upper_constraints_file: >-
-        {{ ansible_user_dir }}/src/opendev.org/openstack/requirements/
-        upper-constraints.txt'
+      requirements_dir: >-
+        {{ ansible_user_dir }}/src/opendev.org/openstack/requirements
+      upper_constraints_file: '{{ requirements_dir }}/upper-constraints.txt'
 
     pre-run: playbooks/devstack/pre.yaml
     run: playbooks/devstack/run.yaml