diff --git a/.github/workflows/static.yml b/.github/workflows/static.yml
index 26ecf07..342fa5f 100644
--- a/.github/workflows/static.yml
+++ b/.github/workflows/static.yml
@@ -54,6 +54,7 @@ jobs:
         php-version: 8.1
         tools: composer:v2
         coverage: none
+        extensions: json,fileinfo
 
     - name: Install Dependencies
       run: composer update --prefer-stable --no-interaction --no-progress --ansi
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 840ae71..30eee0b 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -23,6 +23,7 @@ jobs:
         php-version: ${{ matrix.php }}
         tools: composer:v2
         coverage: xdebug
+        extensions: json,fileinfo
 
     - name: Setup problem matches
       run: |
diff --git a/CHANGELOG.md b/CHANGELOG.md
index dd045f1..52c8d0a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,12 @@
 # Changelog
 All notable changes to this project will be documented in this file.
 
+## [1.0.0-alpha.16] - 2023-05-20
+
+### Documentation
+
+- Change minimum version to php 8.1 on readme
+
 ## [1.0.0-alpha.15] - 2023-05-20
 
 ### Bug Fixes
@@ -16,6 +22,7 @@ All notable changes to this project will be documented in this file.
 ### Miscellaneous Tasks
 
 - Install slim/http as a dependency
+- Install pnpm as a peoject dev-dependency
 
 ### Testing
 
diff --git a/README.md b/README.md
index a784751..0cfbea6 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ To get started, install the package using composer:
 composer require nekofar/slim-jsend
 ```
 
-Requires Slim Framework 4 and PHP 7.3 or newer.
+Requires Slim Framework 4 and PHP 8.1 or newer.
 
 ## Usage