diff --git a/packages/aws-serverless/package.json b/packages/aws-serverless/package.json
index 64f968291361..1f0ef4cf389e 100644
--- a/packages/aws-serverless/package.json
+++ b/packages/aws-serverless/package.json
@@ -73,7 +73,7 @@
     "@sentry/core": "10.56.0",
     "@sentry/node": "10.56.0",
     "@sentry/node-core": "10.56.0",
-    "@types/aws-lambda": "^8.10.62"
+    "@types/aws-lambda": "^8.10.161"
   },
   "devDependencies": {
     "@types/node": "^18.19.1",
diff --git a/packages/aws-serverless/src/utils.ts b/packages/aws-serverless/src/utils.ts
index f298a2bfec48..ff8e8810992b 100644
--- a/packages/aws-serverless/src/utils.ts
+++ b/packages/aws-serverless/src/utils.ts
@@ -40,7 +40,7 @@ export function markEventUnhandled(scope: Scope, type: string): Scope {
  * back to the `event`.
  *
  * When instrumenting the Lambda function with Sentry, the sentry trace data
- * is placed on `context.clientContext.Custom`. Users are free to modify context
+ * is placed on `context.clientContext.custom`. Users are free to modify context
  * tho and provide this data via `event` or `context`.
  */
 export function getAwsTraceData(event: HandlerEvent, context?: HandlerContext): TraceData {
@@ -51,8 +51,8 @@ export function getAwsTraceData(event: HandlerEvent, context?: HandlerContext):
     baggage: headers.baggage,
   };
 
-  if (context?.clientContext?.Custom) {
-    const customContext: Record<string, unknown> = context.clientContext.Custom;
+  if (context?.clientContext?.custom) {
+    const customContext: Record<string, unknown> = context.clientContext.custom;
     const sentryTrace = isString(customContext['sentry-trace']) ? customContext['sentry-trace'] : undefined;
 
     if (sentryTrace) {
diff --git a/packages/aws-serverless/test/utils.test.ts b/packages/aws-serverless/test/utils.test.ts
index e77171454a6a..f3e0f00dc97b 100644
--- a/packages/aws-serverless/test/utils.test.ts
+++ b/packages/aws-serverless/test/utils.test.ts
@@ -14,7 +14,7 @@ vi.mock('@opentelemetry/api', async () => {
 
 const mockContext = {
   clientContext: {
-    Custom: {
+    custom: {
       'sentry-trace': '12345678901234567890123456789012-1234567890123456-1',
       baggage: 'sentry-environment=production',
     },
@@ -54,7 +54,7 @@ describe('getTraceData', () => {
   test('gets sentry trace data from the event if the context sentry trace is undefined', () => {
     const traceData = getAwsTraceData(mockEvent, {
       // @ts-expect-error, a partial context object is fine here
-      clientContext: { Custom: { 'sentry-trace': undefined, baggage: '' } },
+      clientContext: { custom: { 'sentry-trace': undefined, baggage: '' } },
     });
 
     expect(traceData['sentry-trace']).toEqual('12345678901234567890123456789012-1234567890123456-2');
diff --git a/yarn.lock b/yarn.lock
index 8395b0d2c76e..99085442331a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8900,10 +8900,10 @@
   resolved "https://registry.yarnpkg.com/@types/aria-query/-/aria-query-5.0.4.tgz#1a31c3d378850d2778dabb6374d036dcba4ba708"
   integrity sha512-rfT93uj5s0PRL7EzccGMs3brplhcrghnDoV26NqKhCAS1hVo+WdNsPvE/yb6ilfr5hi2MEk6d5EWJTKdxg8jVw==
 
-"@types/aws-lambda@^8.10.62":
-  version "8.10.150"
-  resolved "https://registry.yarnpkg.com/@types/aws-lambda/-/aws-lambda-8.10.150.tgz#4998b238750ec389a326a7cdb625808834036bd3"
-  integrity sha512-AX+AbjH/rH5ezX1fbK8onC/a+HyQHo7QGmvoxAE42n22OsciAxvZoZNEr22tbXs8WfP1nIsBjKDpgPm3HjOZbA==
+"@types/aws-lambda@^8.10.161":
+  version "8.10.161"
+  resolved "https://registry.yarnpkg.com/@types/aws-lambda/-/aws-lambda-8.10.161.tgz#36d95723ec46d3d555bf0684f83cf4d4369a28ad"
+  integrity sha512-rUYdp+MQwSFocxIOcSsYSF3YYYC/uUpMbCY/mbO21vGqfrEYvNSoPyKYDj6RhXXpPfS0KstW9RwG3qXh9sL7FQ==
 
 "@types/babel__core@^7.20.1", "@types/babel__core@^7.20.4":
   version "7.20.5"