diff --git a/CHANGELOG.md b/CHANGELOG.md
index 72415bc44..195e456ce 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 All notable changes to the LaunchDarkly PHP SDK will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org).
 
+## [3.5.4] - 2019-05-10
+### Changed:
+- Changed the package name from `launchdarkly/launchdarkly-php` to `launchdarkly/server-sdk`
+
+There are no other changes in this release. Substituting `launchdarkly/launchdarkly-php` version 3.5.3 with `launchdarkly/server-sdk` version 3.5.4 will not affect functionality.
+
 ## [3.5.3] - 2019-04-26
 ### Fixed:
 - Segment rollout calculations did not work correctly if the rollout was based on a user attribute other than `key`; all users would end up in the same bucket. (Thanks, [m6w6](https://github.com/launchdarkly/php-server-sdk/pull/121)!)
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index c010aa5b4..7e9d716ab 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -14,7 +14,7 @@ We encourage pull requests and other contributions from the community. Before su
 
 ### Prerequisites
 
-The project uses [Composer](https://getcomposer.org/).
+The project uses [Composer](https://getcomposer.org/) for managing dependencies.
 
 ### Installing dependencies
 
@@ -29,7 +29,7 @@ composer install
 To run all unit tests:
 
 ```
-phpunit
+./vendor/bin/phpunit
 ```
 
 By default, the full unit test suite includes live tests of the integrations for Consul, DynamoDB, and Redis. Those tests expect you to have instances of all of those databases running locally. To skip them, set the environment variable `LD_SKIP_DATABASE_TESTS=1` before running the tests.
diff --git a/VERSION b/VERSION
index 444877d48..65afb3b88 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.5.3
+3.5.4
diff --git a/composer.json b/composer.json
index 7d6ab72f6..5e3115271 100644
--- a/composer.json
+++ b/composer.json
@@ -1,5 +1,5 @@
 {
-    "name": "launchdarkly/launchdarkly-php",
+    "name": "launchdarkly/server-sdk",
     "description": "Official LaunchDarkly SDK for PHP",
     "keywords": [
         "launchdarkly",
diff --git a/src/LaunchDarkly/LDClient.php b/src/LaunchDarkly/LDClient.php
index 1ea313a19..6a1702eb8 100644
--- a/src/LaunchDarkly/LDClient.php
+++ b/src/LaunchDarkly/LDClient.php
@@ -13,7 +13,7 @@ class LDClient
 {
     const DEFAULT_BASE_URI = 'https://app.launchdarkly.com';
     const DEFAULT_EVENTS_URI = 'https://events.launchdarkly.com';
-    const VERSION = '3.5.3';
+    const VERSION = '3.5.4';
 
     /** @var string */
     protected $_sdkKey;