diff --git a/CHANGELOG.md b/CHANGELOG.md
index ab82e58..ec4bf7e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,9 +4,14 @@ This changelog documents the changes between release versions.
 ## [Unreleased]
 Changes to be included in the next upcoming release
 
+## [1.9.0] - 2024-10-24
+
 ### Added
 - Exported the `@hasura/ndc-lambda-sdk/connector` module to make it easier to build entirely new connectors that extend the existing functionality provided by the SDK ([#45](https://github.com/hasura/ndc-nodejs-lambda/pull/45))
 
+### Changed
+* Updated to use [TypeScript v5.6.3](https://devblogs.microsoft.com/typescript/announcing-typescript-5-6/) ([#46](https://github.com/hasura/ndc-nodejs-lambda/pull/46))
+
 ## [1.8.0] - 2024-09-20
 - Updated the NDC TypeScript SDK to v7.0.0 ([#44](https://github.com/hasura/ndc-nodejs-lambda/pull/44))
   - Added support for exporting OpenTelemetry traces and metrics over GRPC. A new environment variable `OTEL_EXPORTER_OTLP_PROTOCOL` lets you switch between `http/protobuf` and `grpc`.
diff --git a/ndc-lambda-sdk/package-lock.json b/ndc-lambda-sdk/package-lock.json
index a1d1733..d6fda51 100644
--- a/ndc-lambda-sdk/package-lock.json
+++ b/ndc-lambda-sdk/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@hasura/ndc-lambda-sdk",
-  "version": "1.8.0",
+  "version": "1.9.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@hasura/ndc-lambda-sdk",
-      "version": "1.8.0",
+      "version": "1.9.0",
       "license": "Apache-2.0",
       "dependencies": {
         "@hasura/ndc-sdk-typescript": "^7.0.0",
@@ -17,7 +17,7 @@
         "p-limit": "^3.1.0",
         "ts-api-utils": "^1.3.0",
         "ts-node": "^10.9.2",
-        "typescript": "^5.5.4"
+        "typescript": "^5.6.3"
       },
       "bin": {
         "ndc-lambda-sdk": "bin/index.js"
@@ -3851,9 +3851,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.5.4",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.4.tgz",
-      "integrity": "sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==",
+      "version": "5.6.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.6.3.tgz",
+      "integrity": "sha512-hjcS1mhfuyi4WW8IWtjP7brDrG2cuDZukyrYrSauoXGNgx0S7zceP07adYkJycEr56BOUTNPzbInooiN3fn1qw==",
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
diff --git a/ndc-lambda-sdk/package.json b/ndc-lambda-sdk/package.json
index a992ba9..2c306cc 100644
--- a/ndc-lambda-sdk/package.json
+++ b/ndc-lambda-sdk/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hasura/ndc-lambda-sdk",
-  "version": "1.8.0",
+  "version": "1.9.0",
   "description": "SDK that can automatically expose TypeScript functions as Hasura NDC functions/procedures",
   "author": "Hasura",
   "license": "Apache-2.0",
@@ -39,7 +39,7 @@
     "p-limit": "^3.1.0",
     "ts-api-utils": "^1.3.0",
     "ts-node": "^10.9.2",
-    "typescript": "^5.5.4"
+    "typescript": "^5.6.3"
   },
   "devDependencies": {
     "@types/chai": "^4.3.11",
diff --git a/ndc-lambda-sdk/src/execution.ts b/ndc-lambda-sdk/src/execution.ts
index c3e2964..7364f8b 100644
--- a/ndc-lambda-sdk/src/execution.ts
+++ b/ndc-lambda-sdk/src/execution.ts
@@ -281,7 +281,7 @@ export function reshapeResultUsingFieldSelection(value: unknown, type: schema.Ty
   switch (type.type) {
     case "array":
       if (!isArray(value))
-        throw new sdk.InternalServerError(`Expected an array, but received '${value === null ? "null" : null ?? typeof value}'`);
+        throw new sdk.InternalServerError(`Expected an array, but received '${value === null ? "null" : typeof value}'`);
 
       const elementFieldSelection = (() => {
         switch (fieldSelection.type) {
@@ -314,7 +314,7 @@ export function reshapeResultUsingFieldSelection(value: unknown, type: schema.Ty
           if (objectType === undefined)
             throw new sdk.InternalServerError(`Unable to find object type definition '${type.name}'`)
           if (value === null || Array.isArray(value) || typeof value !== "object")
-            throw new sdk.InternalServerError(`Expected an object, but received '${value === null ? "null" : null ?? Array.isArray(value) ? "array" : null ?? typeof value}'`);
+            throw new sdk.InternalServerError(`Expected an object, but received '${value === null ? "null" : Array.isArray(value) ? "array" : typeof value}'`);
 
           const selectedFields: Record<string, sdk.Field> = (() => {
             switch (fieldSelection.type) {