diff --git a/kustomize/dovecot-deployment.yaml b/kustomize/dovecot-deployment.yaml
index edf1211..792d34c 100644
--- a/kustomize/dovecot-deployment.yaml
+++ b/kustomize/dovecot-deployment.yaml
@@ -25,7 +25,7 @@ spec:
           resources:
             limits:
               memory: "128Mi"
-              cpu: "500m"
+              cpu: "300m"
           ports:
             - containerPort: 24
               name: lmtp
diff --git a/kustomize/postfix-deployment.yaml b/kustomize/postfix-deployment.yaml
index 09f3bbb..d6a5668 100644
--- a/kustomize/postfix-deployment.yaml
+++ b/kustomize/postfix-deployment.yaml
@@ -20,7 +20,7 @@ spec:
         resources:
           limits:
             memory: "128Mi"
-            cpu: "500m"
+            cpu: "300m"
         ports:
         - containerPort: 25
           name: smtp
diff --git a/kustomize/roundcube-deployment.yaml b/kustomize/roundcube-deployment.yaml
index 7ef2b30..7a159aa 100644
--- a/kustomize/roundcube-deployment.yaml
+++ b/kustomize/roundcube-deployment.yaml
@@ -30,8 +30,8 @@ spec:
             mountPath: /var/roundcube
         resources:
           limits:
-            memory: "256Mi"
-            cpu: "500m"
+            memory: "128Mi"
+            cpu: "300m"
         ports:
         - containerPort: 80
           name: roundcube