diff --git a/tests/caas/smoke.yaml.j2 b/tests/caas/smoke.yaml.j2
index c65b9676..b3404324 100644
--- a/tests/caas/smoke.yaml.j2
+++ b/tests/caas/smoke.yaml.j2
@@ -15,7 +15,9 @@ applications:
     base: ubuntu@22.04
     scale: 1
     trust: true
-    constraints: cpu-power=1000 mem=1G
+    options:
+      profile-limit-memory: 2560
+      experimental-max-connections: 150
   vault:
     charm: ch:vault-k8s
     channel: 1.15/edge
diff --git a/tests/ceph/smoke.yaml.j2 b/tests/ceph/smoke.yaml.j2
index ca8129a9..adfff2df 100644
--- a/tests/ceph/smoke.yaml.j2
+++ b/tests/ceph/smoke.yaml.j2
@@ -15,7 +15,9 @@ applications:
     base: ubuntu@22.04
     scale: 1
     trust: true
-    constraints: cpu-power=1000 mem=1G
+    options:
+      profile-limit-memory: 2560
+      experimental-max-connections: 150
   rabbitmq:
     charm: ch:rabbitmq-k8s
     channel: 3.12/edge
diff --git a/tests/core/smoke.yaml.j2 b/tests/core/smoke.yaml.j2
index 4cada60d..d00ed0f8 100644
--- a/tests/core/smoke.yaml.j2
+++ b/tests/core/smoke.yaml.j2
@@ -15,7 +15,9 @@ applications:
     base: ubuntu@22.04
     scale: 1
     trust: true
-    constraints: cpu-power=1000 mem=1G
+    options:
+      profile-limit-memory: 2560
+      experimental-max-connections: 150
   tls-operator:
     charm: self-signed-certificates
     channel: latest/beta
diff --git a/tests/misc/smoke.yaml.j2 b/tests/misc/smoke.yaml.j2
index 9c6db6c1..cad07d10 100644
--- a/tests/misc/smoke.yaml.j2
+++ b/tests/misc/smoke.yaml.j2
@@ -15,7 +15,9 @@ applications:
     base: ubuntu@22.04
     scale: 1
     trust: true
-    constraints: cpu-power=1000 mem=1G
+    options:
+      profile-limit-memory: 2560
+      experimental-max-connections: 150
   ldap-server:
     charm: ch:ldap-test-fixture-k8s
     channel: edge
diff --git a/tests/tempest/smoke.yaml.j2 b/tests/tempest/smoke.yaml.j2
index e4b70d73..f36406c4 100644
--- a/tests/tempest/smoke.yaml.j2
+++ b/tests/tempest/smoke.yaml.j2
@@ -15,7 +15,9 @@ applications:
     base: ubuntu@22.04
     scale: 1
     trust: true
-    constraints: cpu-power=1000 mem=1G
+    options:
+      profile-limit-memory: 2560
+      experimental-max-connections: 150
   tls-operator:
     charm: self-signed-certificates
     channel: latest/beta