diff --git a/.travis.yml b/.travis.yml
index 06df247..03cc7cc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,5 +3,7 @@ language: php
 php:
   - 7.0
   - 7.1
+  - 7.2
+  - 7.3
 
 install: composer install
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5d29e46..91748fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 1.1
+
+Support for Symfony 4, PHP 7.2 and PHP 7.3
+
 ## 1.0
 
 Initial release
diff --git a/composer.json b/composer.json
index 85bc89d..2469ff0 100644
--- a/composer.json
+++ b/composer.json
@@ -11,12 +11,12 @@
         }
     ],
     "require": {
-        "symfony/serializer": "^2.8|^3.0",
+        "symfony/serializer": "^2.8|^3.0|^4.0",
         "ramsey/uuid": "^3.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^6.3",
-        "symfony/property-access": "^3.3"
+        "phpunit/phpunit": "^6.3|^7.5",
+        "symfony/property-access": "^3.3|^4.0"
     },
     "autoload": {
         "files": [