diff --git a/.travis.yml b/.travis.yml
index 70736d529..8b358552d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,7 @@ php:
     - 7.2
     - 7.3
     - 7.4
+    - nightly
 
 before_install:
     # turn off XDebug
@@ -75,7 +76,7 @@ jobs:
         -   stage: Code Coverage
 
 
-sudo: false
+dist: xenial
 
 cache:
     directories:
diff --git a/readme.md b/readme.md
index 0c8911a80..116f942bb 100644
--- a/readme.md
+++ b/readme.md
@@ -36,7 +36,7 @@ The recommended way to install is via Composer:
 composer require nette/forms
 ```
 
-It requires PHP version 7.1 and supports PHP up to 7.4.
+It requires PHP version 7.1 and supports PHP up to 8.0.
 
 
 Client-side support can be installed with npm or yarn: