diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 2b11449..1f59b68 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.27.0"
+  ".": "0.27.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1109126..c1e7396 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [0.27.1](https://github.com/agentclientprotocol/typescript-sdk/compare/v0.27.0...v0.27.1) (2026-06-18)
+
+
+### Bug Fixes
+
+* **node-adapter:** Cap HTTP request body size ([#186](https://github.com/agentclientprotocol/typescript-sdk/issues/186)) ([3832d4c](https://github.com/agentclientprotocol/typescript-sdk/commit/3832d4ce69d9f44c5f886c9b3ff24169d6119236))
+* **node-adapter:** harden Node adapter request parsing ([220eae6](https://github.com/agentclientprotocol/typescript-sdk/commit/220eae660e459ac648fe352b756b586f39f9aa1e))
+
 ## [0.27.0](https://github.com/agentclientprotocol/typescript-sdk/compare/v0.26.0...v0.27.0) (2026-06-18)
 
 This is a big release! We have rewritten the SDK to have a more ergonomic design for creating new agents and clients. You can read more in the [Migration Guide](https://github.com/agentclientprotocol/typescript-sdk/blob/main/MIGRATION_0.26_0.27.md) for how to migrate.
diff --git a/package-lock.json b/package-lock.json
index f4dfe37..4fac63c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@agentclientprotocol/sdk",
-  "version": "0.27.0",
+  "version": "0.27.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@agentclientprotocol/sdk",
-      "version": "0.27.0",
+      "version": "0.27.1",
       "license": "Apache-2.0",
       "devDependencies": {
         "@eslint/js": "^10.0.1",
diff --git a/package.json b/package.json
index 9f565e9..de87db0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@agentclientprotocol/sdk",
-  "version": "0.27.0",
+  "version": "0.27.1",
   "publishConfig": {
     "access": "public"
   },