diff --git a/CHANGELOG.md b/CHANGELOG.md
index 26b7aa6..ee13df9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+### Added
+
+- `FunctionConfig.requestConcurrency` option for GCP gen2 functions, mapped to `serviceConfig.maxInstanceRequestConcurrency`. Lets functions serve more than one request per instance (defaults to 1 currently).
+
 ## [5.2.0](https://github.com/Space48/cloud-seed/compare/v5.1.0...v5.2.0)
 
 ### Added
diff --git a/package-lock.json b/package-lock.json
index d8c0921..bb42c6e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@space48/cloud-seed",
-  "version": "5.1.0",
+  "version": "5.2.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@space48/cloud-seed",
-      "version": "5.1.0",
+      "version": "5.2.0",
       "license": "MIT",
       "dependencies": {
         "arg": "^5.0.2",
diff --git a/stacks/gcp/GcpStack.ts b/stacks/gcp/GcpStack.ts
index 1780a20..dcb9381 100644
--- a/stacks/gcp/GcpStack.ts
+++ b/stacks/gcp/GcpStack.ts
@@ -167,6 +167,7 @@ export default class GcpStack extends TerraformStack {
           timeoutSeconds: func.timeout ?? 60,
           maxInstanceCount: func.maxInstances,
           minInstanceCount: func.minInstances,
+          maxInstanceRequestConcurrency: func.requestConcurrency,
           environmentVariables,
           ...(func.vpc?.network || func.vpc?.subnet
             ? {
diff --git a/types/runtime.ts b/types/runtime.ts
index 4119ec9..83d00e7 100644
--- a/types/runtime.ts
+++ b/types/runtime.ts
@@ -20,6 +20,7 @@ export type FunctionConfig = {
   };
   maxInstances?: number;
   minInstances?: number;
+  requestConcurrency?: number;
   version?: string;
 };