diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 6d3db10..1ab9428 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1 +1 @@
-{".":"9.1.0"}
+{".":"9.1.1"}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 19c54f6..3ed94eb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [9.1.1](https://github.com/Flagsmith/flagsmith-nodejs-client/compare/v9.1.0...v9.1.1) (2026-10-21)
+
+
+### CI
+
+* Label Renovate's SDK spec bump PRs ([#309](https://github.com/Flagsmith/flagsmith-nodejs-client/issues/309)) ([c9f5df1](https://github.com/Flagsmith/flagsmith-nodejs-client/commit/c9f5df1a337f8b5d3e8efb275e071ee62c2daa7e))
+* Run the Flagsmith SDK behavioural spec ([#307](https://github.com/Flagsmith/flagsmith-nodejs-client/issues/307)) ([089838b](https://github.com/Flagsmith/flagsmith-nodejs-client/commit/089838b3d84e56a1e7f46d6fc09f151a79352b04))
+
 ## [9.1.0](https://github.com/Flagsmith/flagsmith-nodejs-client/compare/v9.0.3...v9.1.0) (2026-09-25)
 
 
diff --git a/package-lock.json b/package-lock.json
index de20d93..0090776 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@flagsmith/nodejs",
-  "version": "9.1.0",
+  "version": "9.1.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@flagsmith/nodejs",
-      "version": "9.1.0",
+      "version": "9.1.1",
       "license": "MIT",
       "dependencies": {
         "jsonpath-plus": "^10.4.0",
diff --git a/package.json b/package.json
index e774f57..d30027b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@flagsmith/nodejs",
-  "version": "9.1.0",
+  "version": "9.1.1",
   "description": "Flagsmith lets you manage features flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features.",
   "main": "./build/cjs/index.js",
   "type": "module",
diff --git a/sdk/version.ts b/sdk/version.ts
index 3259227..aa8c56b 100644
--- a/sdk/version.ts
+++ b/sdk/version.ts
@@ -1 +1 @@
-export const SDK_VERSION = '9.1.0'; // x-release-please-version
+export const SDK_VERSION = '9.1.1'; // x-release-please-version