diff --git a/src/deployments/cdk/src/deployments/sns/step-1.ts b/src/deployments/cdk/src/deployments/sns/step-1.ts
index 1137a02b6..4df93182f 100644
--- a/src/deployments/cdk/src/deployments/sns/step-1.ts
+++ b/src/deployments/cdk/src/deployments/sns/step-1.ts
@@ -206,6 +206,7 @@ function createSnsTopics(props: {
       handler: 'index.createSnsPublishToCentralRegion',
       code: lambdaCode,
       role,
+      memorySize: 512,
       environment: {
         CENTRAL_LOG_SERVICES_REGION: centralServicesRegion,
         CENTRAL_LOG_ACCOUNT: centralAccount,
@@ -224,6 +225,7 @@ function createSnsTopics(props: {
     handler: 'index.createIgnoreAction',
     code: lambdaCode,
     role,
+    memorySize: 512,
     timeout: cdk.Duration.minutes(15),
   });
 
diff --git a/src/lib/custom-resources/logs-add-subscription-filter/src/index.ts b/src/lib/custom-resources/logs-add-subscription-filter/src/index.ts
index 8c386441c..92226c9dc 100644
--- a/src/lib/custom-resources/logs-add-subscription-filter/src/index.ts
+++ b/src/lib/custom-resources/logs-add-subscription-filter/src/index.ts
@@ -141,6 +141,7 @@ export class CentralLoggingSubscriptionFilter extends Construct {
       code: lambda.Code.fromAsset(lambdaDir),
       handler: 'index.handler',
       role: this.role,
+      memorySize: 1024,
       environment: environment!,
       // Set timeout to maximum timeout
       timeout: cdk.Duration.minutes(15),