diff --git a/cluster/terraform_kubernetes/config/production.tfvars.json b/cluster/terraform_kubernetes/config/production.tfvars.json
index 82803bd9..e8b663bb 100644
--- a/cluster/terraform_kubernetes/config/production.tfvars.json
+++ b/cluster/terraform_kubernetes/config/production.tfvars.json
@@ -31,7 +31,7 @@
   ],
   "ingress_nginx_version": "4.8.3",
   "enable_lowpriority_app": true,
-  "prometheus_app_mem": "3Gi",
+  "prometheus_app_mem": "4Gi",
   "prometheus_app_cpu": "0.5",
   "thanos_app_mem": "1Gi",
   "thanos_app_cpu": "0.5",
diff --git a/cluster/terraform_kubernetes/config/test.tfvars.json b/cluster/terraform_kubernetes/config/test.tfvars.json
index b00e525d..4497c606 100644
--- a/cluster/terraform_kubernetes/config/test.tfvars.json
+++ b/cluster/terraform_kubernetes/config/test.tfvars.json
@@ -36,7 +36,7 @@
   "enable_lowpriority_app": true,
   "lowpriority_app_cpu": "0.5",
   "lowpriority_app_mem": "1Gi",
-  "prometheus_app_mem": "3Gi",
+  "prometheus_app_mem": "4Gi",
   "prometheus_app_cpu": "0.5",
   "thanos_app_mem": "1Gi",
   "thanos_compactor_app_mem": "2Gi",