diff --git a/.travis.yml b/.travis.yml
index 5a558f7..287776e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,7 @@ sudo: false
 php:
   - 7.1
   - 7.2
+  - 7.3
 
 before_script:
   - travis_retry composer self-update
diff --git a/README.md b/README.md
index af8ad90..829fc73 100644
--- a/README.md
+++ b/README.md
@@ -57,8 +57,7 @@ $ composer require johnnymast/morsecode
 
 The following versions of PHP are supported by this version.
 
-+ PHP 7.0
-+ PHP 7.1
++ PHP >= 7.0
 + HHVM
 
 ## Development Requirements