diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c28222e..4e383dc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,6 +10,7 @@ jobs:
     strategy:
       matrix:
         php:
+          - 8.0
           - 7.4
           - 7.3
           - 7.2
diff --git a/README.md b/README.md
index 105d078..d243871 100644
--- a/README.md
+++ b/README.md
@@ -89,7 +89,7 @@ $ composer require clue/reactphp-eventsource:dev-master
 ```
 
 This project aims to run on any platform and thus does not require any PHP
-extensions and supports running on legacy PHP 5.4 through current PHP 7+.
+extensions and supports running on legacy PHP 5.4 through current PHP 8+.
 It's *highly recommended to use PHP 7+* for this project.
 
 ## Tests