diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 03dfb1a60..e45ce5803 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -3,6 +3,6 @@
   "packages/react": "1.0.1",
   "packages/web": "1.6.1",
   "packages/server": "1.19.0",
-  "packages/shared": "1.9.0",
+  "packages/shared": "1.9.1",
   "packages/angular/projects/angular-sdk": "0.0.16"
 }
diff --git a/packages/shared/CHANGELOG.md b/packages/shared/CHANGELOG.md
index 8d3cc0013..73bffac82 100644
--- a/packages/shared/CHANGELOG.md
+++ b/packages/shared/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog 
 
+## [1.9.1](https://github.com/open-feature/js-sdk/compare/core-v1.9.0...core-v1.9.1) (2025-09-26)
+
+
+### 🐛 Bug Fixes
+
+* make OTEL evaluation event attribute types compliant to OTEL types ([#1237](https://github.com/open-feature/js-sdk/issues/1237)) ([4f71dd4](https://github.com/open-feature/js-sdk/commit/4f71dd4d626e3d4ab4ea217bedb73e6068355e37))
+
 ## [1.9.0](https://github.com/open-feature/js-sdk/compare/core-v1.8.1...core-v1.9.0) (2025-08-10)
 
 
diff --git a/packages/shared/package.json b/packages/shared/package.json
index 356462baa..095fcf18a 100644
--- a/packages/shared/package.json
+++ b/packages/shared/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@openfeature/core",
-  "version": "1.9.0",
+  "version": "1.9.1",
   "description": "Shared OpenFeature JS components (server and web)",
   "main": "./dist/cjs/index.js",
   "files": [