diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 96c121b..aab307d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,10 +7,11 @@ on:
 jobs:
   PHPUnit:
     name: PHPUnit (PHP ${{ matrix.php }})
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     strategy:
       matrix:
         php:
+          - 8.6
           - 8.5
           - 8.4
           - 8.3
@@ -47,7 +48,7 @@ jobs:
       - uses: actions/checkout@v7
       - uses: shivammathur/setup-php@v2
         with:
-          php-version: 8.5
+          php-version: 8.6
           coverage: xdebug
           ini-file: development
       - run: composer install
@@ -55,7 +56,7 @@ jobs:
 
   PHPUnit-hhvm:
     name: PHPUnit (HHVM)
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     continue-on-error: true
     steps:
       - uses: actions/checkout@v7
diff --git a/composer.json b/composer.json
index c8e4c58..afebf0e 100644
--- a/composer.json
+++ b/composer.json
@@ -28,8 +28,8 @@
     "require": {
         "php": ">=5.3.0",
         "react/cache": "^1.0 || ^0.6 || ^0.5",
-        "react/event-loop": "^1.2",
-        "react/promise": "^3.2 || ^2.7 || ^1.2.1"
+        "react/event-loop": "^1.6",
+        "react/promise": "^3.3 || ^2.7 || ^1.2.1"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.6 || ^8.5 || ^5.7 || ^4.8.36",