diff --git a/composer.lock b/composer.lock
index 651592e..42fd0dc 100644
--- a/composer.lock
+++ b/composer.lock
@@ -152,25 +152,24 @@
         },
         {
             "name": "reactivex/rxphp",
-            "version": "2.0.7",
+            "version": "2.0.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/ReactiveX/RxPHP.git",
-                "reference": "fd74a0cd2b5edd4a48e4ff12aaa44cc6cdc4a9b4"
+                "reference": "851913a522b4955bd783d2193d7af6bda422e25d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/ReactiveX/RxPHP/zipball/fd74a0cd2b5edd4a48e4ff12aaa44cc6cdc4a9b4",
-                "reference": "fd74a0cd2b5edd4a48e4ff12aaa44cc6cdc4a9b4",
+                "url": "https://api.github.com/repos/ReactiveX/RxPHP/zipball/851913a522b4955bd783d2193d7af6bda422e25d",
+                "reference": "851913a522b4955bd783d2193d7af6bda422e25d",
                 "shasum": ""
             },
             "require": {
-                "php": "~7.0",
+                "php": ">=7.0.0",
                 "react/promise": "~2.2"
             },
             "require-dev": {
-                "phpunit/phpcov": "^3.1",
-                "phpunit/phpunit": "^5.7",
+                "phpunit/phpunit": "^8.5 || ^9",
                 "react/event-loop": "^1.0 || ^0.5 || ^0.4.2",
                 "satooshi/php-coveralls": "~1.0"
             },
@@ -213,7 +212,7 @@
                 "reactive",
                 "rx"
             ],
-            "time": "2018-04-18T01:34:36+00:00"
+            "time": "2020-12-13T02:20:25+00:00"
         },
         {
             "name": "wyrihaximus/constants",