diff --git a/.circleci/config.yml b/.circleci/config.yml
index 2edbd7d..dec189f 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -4,7 +4,6 @@ jobs:
   test-php74:
     docker:
       - image: circleci/php:7.4-cli
-
     working_directory: ~/project
     steps:
       - checkout
@@ -18,7 +17,32 @@ jobs:
   test-php80:
     docker:
       - image: circleci/php:8.0-cli
+    working_directory: ~/project
+    steps:
+      - checkout
+
+      - run:
+          name: Run tests
+          command: |
+            composer update -n --prefer-dist --no-suggest
+            php vendor/bin/phpunit
+
+  test-php81:
+    docker:
+      - image: cimg/php:8.1
+    working_directory: ~/project
+    steps:
+      - checkout
 
+      - run:
+          name: Run tests
+          command: |
+            composer update -n --prefer-dist --no-suggest
+            php vendor/bin/phpunit
+
+  test-php82:
+    docker:
+      - image: cimg/php:8.2
     working_directory: ~/project
     steps:
       - checkout
@@ -34,4 +58,6 @@ workflows:
   test:
     jobs:
       - test-php74
-      - test-php80
\ No newline at end of file
+      - test-php80
+      - test-php81
+      - test-php82
\ No newline at end of file
diff --git a/.phpunit.result.cache b/.phpunit.result.cache
new file mode 100644
index 0000000..a95a7a4
--- /dev/null
+++ b/.phpunit.result.cache
@@ -0,0 +1 @@
+{"version":1,"defects":{"Drift\\React\\Tests\\SleepTest::testIt":4},"times":{"Drift\\React\\Tests\\MimeContentTypeTest::testItResolvesWithMimeType":0.048,"Drift\\React\\Tests\\MimeContentTypeTest::testIfRejectsOnFailure with data set #0":0.024,"Drift\\React\\Tests\\MimeContentTypeTest::testIfRejectsOnFailure with data set #1":0.015,"Drift\\React\\Tests\\SleepTest::testIt":0}}
\ No newline at end of file
diff --git a/composer.json b/composer.json
index 9b66ade..3d1b828 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
     "require": {
         "php": "^7.4 || ^8.0",
         "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3.5",
-        "react/promise": "^2.7 || ^1.2.1",
+        "react/promise": "^3",
         "react/child-process": "^0.6",
         "react/promise-timer": "^1.5",
         "react/stream": "^1.0"
diff --git a/tests/SleepTest.php b/tests/SleepTest.php
index 26ee095..4cae689 100644
--- a/tests/SleepTest.php
+++ b/tests/SleepTest.php
@@ -19,7 +19,7 @@ function testIt()
         $loop = Factory::create();
         $elements = [];
 
-        $promiseXZ = resolve()
+        $promiseXZ = resolve(null)
             ->then(function() use (&$elements){
                 $elements[] = 'X';
             })
@@ -30,7 +30,7 @@ function testIt()
                 $elements[] = 'Z';
             });
 
-        $promiseY = resolve()
+        $promiseY = resolve(null)
             ->then(function() use ($loop) {
                 return React\sleep(1, $loop);
             })
diff --git a/tests/UsleepTest.php b/tests/UsleepTest.php
index 15b0b54..7d975dc 100644
--- a/tests/UsleepTest.php
+++ b/tests/UsleepTest.php
@@ -19,7 +19,7 @@ function testIt()
         $loop = Factory::create();
         $elements = [];
 
-        $promiseXZ = resolve()
+        $promiseXZ = resolve(null)
             ->then(function() use (&$elements){
                 $elements[] = 'X';
             })
@@ -30,7 +30,7 @@ function testIt()
                 $elements[] = 'Z';
             });
 
-        $promiseY = resolve()
+        $promiseY = resolve(null)
             ->then(function() use ($loop) {
                 return React\usleep(100, $loop);
             })