diff --git a/.travis.yml b/.travis.yml
index ecffde3..1c20062 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,7 @@ php:
 - 7.2
 - 7.3
 - 7.4
+- 8.0
 env:
   matrix:
   - dependencies=lowest
diff --git a/README.md b/README.md
index 1382d8a..a654c3d 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ All updates to this library are documented in our [CHANGELOG](CHANGELOG.md).
 
 ## Prerequisites
 
-- PHP version 5.6, 7.0, 7.1, 7.2, 7.3, or 7.4
+- PHP version 5.6, 7.0, 7.1, 7.2, 7.3, 7.4, or 8.0
 
 ## Install with Composer