diff --git a/codegen/CHANGELOG.md b/codegen/CHANGELOG.md
index 63f92619503d..19d4810e9e2f 100644
--- a/codegen/CHANGELOG.md
+++ b/codegen/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Smithy AWS Typescript Codegen Changelog
 
+## 0.34.0 (2025-07-30)
+
+### Features
+- Upgraded to smithy-typescript 0.34.0 ([Release Notes](https://github.com/smithy-lang/smithy-typescript/blob/main/CHANGELOG.md#0330-2025-07-30))
+- Upgraded smithy version to 1.61.0 ([#7233](https://github.com/aws/aws-sdk-js-v3/pull/7233))
+
 ## 0.33.0 (2025-07-10)
 
 ### Features
diff --git a/codegen/build.gradle.kts b/codegen/build.gradle.kts
index 3179cfa1eb96..2a0cbddd5a3a 100644
--- a/codegen/build.gradle.kts
+++ b/codegen/build.gradle.kts
@@ -31,7 +31,7 @@ allprojects {
         mavenCentral()
     }
     group = "software.amazon.smithy.typescript"
-    version = "0.33.0"
+    version = "0.34.0"
 }
 
 // The root project doesn't produce a JAR.
diff --git a/codegen/smithy-aws-typescript-codegen/build.gradle.kts b/codegen/smithy-aws-typescript-codegen/build.gradle.kts
index 18507ffe373e..3d2a4160735d 100644
--- a/codegen/smithy-aws-typescript-codegen/build.gradle.kts
+++ b/codegen/smithy-aws-typescript-codegen/build.gradle.kts
@@ -36,7 +36,7 @@ buildscript {
 
 dependencies {
     // Smithy TypeScript
-    api("software.amazon.smithy.typescript:smithy-typescript-codegen:0.33.0")
+    api("software.amazon.smithy.typescript:smithy-typescript-codegen:0.34.0")
 
     // Smithy generic dependencies
     api("software.amazon.smithy:smithy-model:$smithyVersion")
diff --git a/scripts/generate-clients/config.js b/scripts/generate-clients/config.js
index bb2ca870af8b..fa490ba75e7f 100644
--- a/scripts/generate-clients/config.js
+++ b/scripts/generate-clients/config.js
@@ -1,7 +1,7 @@
 // Update this commit when taking up new changes from smithy-typescript.
 module.exports = {
   // Use full commit hash as we explicitly fetch it.
-  SMITHY_TS_COMMIT: "8e2d4cc27314f51d3d8d0ecce13a83e000190ea1",
+  SMITHY_TS_COMMIT: "55751d0f920307e8f08071365c4e64c3e2e78009",
 };
 
 if (module.exports.SMITHY_TS_COMMIT.length < 40) {