diff --git a/.travis.yml b/.travis.yml
index d2c9c28..8cfb63b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,18 +2,29 @@ language: php
 dist: xenial
 
 php:
-  - '5.6'
-  - '7.0'
-  - '7.1'
   - '7.2'
+  - '7.3'
+  - '7.4'
   - nightly
 
-matrix:
+env:
+  - UUID=4
+
+jobs:
   include:
-    - php: '5.5'
-      dist: trusty
+    - php: 5.6
+      env: UUID=3
+    - php: 7.0
+      env: UUID=3
+    - php: 7.1
+      env: UUID=3
+    - php: 7.2
+      env: UUID=3
   allow_failures:
     - php: nightly
 
-install: composer install
+install:
+  - composer self-update --2
+  - composer update --with ramsey/uuid=${UUID}.*
+  - composer install
 script: composer test
diff --git a/composer.json b/composer.json
index d5cf11b..5129aa8 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
   ],
   "require": {
     "php": ">=5.6.0",
-    "ramsey/uuid" : "^3.0",
+    "ramsey/uuid" : "^3.0 || ^4.0",
     "nategood/httpful": "^0.2",
     "respect/validation": "^1.0"
   },