diff --git a/.travis.yml b/.travis.yml
index 4948545..670a5bf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,6 +22,8 @@ matrix:
       dist: bionic
     - php: 7.3
       dist: bionic
+    - php: 7.4
+      dist: bionic
 
 install:
   - travis_retry composer install --no-suggest --prefer-dist -n -o
diff --git a/composer.json b/composer.json
index 6558ae8..422c56c 100644
--- a/composer.json
+++ b/composer.json
@@ -18,10 +18,10 @@
         "php": ">=5.4.0"
     },
     "require-dev": {
-        "doctrine/orm": "2.5.*",
-        "illuminate/database": "5.0.*|5.1.*",
+        "doctrine/orm": "^2.5",
+        "illuminate/database": "5.0.*|5.1.*|5.5.*|6.0.*",
         "league/factory-muffin-faker": "^2.0",
-        "phpunit/phpunit": "^4.8|^5.0"
+        "phpunit/phpunit": "^4.8.36|^5.6.3"
     },
     "replace": {
         "zizaco/factory-muff": "self.version"