diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index e94e1c4cc..affe1e492 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,6 +1,6 @@
 {
   "packages/toolbox-langchain": "0.5.9",
   "packages/toolbox-core": "0.5.9",
-  "packages/toolbox-llamaindex": "0.5.8",
+  "packages/toolbox-llamaindex": "0.5.9",
   "packages/toolbox-adk": "0.6.0"
 }
\ No newline at end of file
diff --git a/packages/toolbox-llamaindex/CHANGELOG.md b/packages/toolbox-llamaindex/CHANGELOG.md
index 7db359280..1b7a0130b 100644
--- a/packages/toolbox-llamaindex/CHANGELOG.md
+++ b/packages/toolbox-llamaindex/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## [0.5.9](https://github.com/googleapis/mcp-toolbox-sdk-python/compare/toolbox-llamaindex-v0.5.8...toolbox-llamaindex-v0.5.9) (2026-02-16)
+
+
+### Features
+
+* Deprecate Protocol.TOOLBOX (Native HTTP Protocol) ([#547](https://github.com/googleapis/mcp-toolbox-sdk-python/issues/547)) ([b99ec50](https://github.com/googleapis/mcp-toolbox-sdk-python/commit/b99ec503bb5d85e6bdf84f72343d90ac00ab8d88))
+* Enable package-specific client identification for MCP ([#525](https://github.com/googleapis/mcp-toolbox-sdk-python/issues/525)) ([7ac0d3f](https://github.com/googleapis/mcp-toolbox-sdk-python/commit/7ac0d3f167af1e47c26a3f43bdb48f3fc0a92109))
+
+
 ## [0.5.8](https://github.com/googleapis/mcp-toolbox-sdk-python/compare/toolbox-llamaindex-v0.5.7...toolbox-llamaindex-v0.5.8) (2026-01-28)
 
 
diff --git a/packages/toolbox-llamaindex/src/toolbox_llamaindex/version.py b/packages/toolbox-llamaindex/src/toolbox_llamaindex/version.py
index 9e6eaa218..49a2ee395 100644
--- a/packages/toolbox-llamaindex/src/toolbox_llamaindex/version.py
+++ b/packages/toolbox-llamaindex/src/toolbox_llamaindex/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.5.8"
+__version__ = "0.5.9"