diff --git a/composer.lock b/composer.lock
index 3580d109dc..ba763ef371 100644
--- a/composer.lock
+++ b/composer.lock
@@ -8,27 +8,27 @@
     "packages": [
         {
             "name": "amphp/amp",
-            "version": "v2.5.2",
+            "version": "v2.6.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/amphp/amp.git",
-                "reference": "efca2b32a7580087adb8aabbff6be1dc1bb924a9"
+                "reference": "c5fc66a78ee38d7ac9195a37bacaf940eb3f65ae"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/amphp/amp/zipball/efca2b32a7580087adb8aabbff6be1dc1bb924a9",
-                "reference": "efca2b32a7580087adb8aabbff6be1dc1bb924a9",
+                "url": "https://api.github.com/repos/amphp/amp/zipball/c5fc66a78ee38d7ac9195a37bacaf940eb3f65ae",
+                "reference": "c5fc66a78ee38d7ac9195a37bacaf940eb3f65ae",
                 "shasum": ""
             },
             "require": {
-                "php": ">=7"
+                "php": ">=7.1"
             },
             "require-dev": {
                 "amphp/php-cs-fixer-config": "dev-master",
                 "amphp/phpunit-util": "^1",
                 "ext-json": "*",
                 "jetbrains/phpstorm-stubs": "^2019.3",
-                "phpunit/phpunit": "^6.0.9 | ^7",
+                "phpunit/phpunit": "^7 | ^8 | ^9",
                 "psalm/phar": "^3.11@dev",
                 "react/promise": "^2"
             },
@@ -88,7 +88,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2021-01-10T17:06:37+00:00"
+            "time": "2021-09-23T18:43:08+00:00"
         },
         {
             "name": "amphp/byte-stream",