diff --git a/.travis.yml b/.travis.yml
index 44d7e37..d5fe631 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,7 @@ language: php
 
 php:
   - 5.6
-  - 7.4
+  - 7.3
   - 8.0
 
 cache:
diff --git a/composer.json b/composer.json
index 5e06e8d..add816a 100755
--- a/composer.json
+++ b/composer.json
@@ -26,10 +26,9 @@
     "laravel/framework": "^5.4|^6.0|^7.0|^8.0|^9.0"
   },
   "require-dev": {
-    "phpunit/phpunit": "^8.0|^9.0",
+    "phpunit/phpunit": "^5.0|^6.0|^7.0|^8.0|^9.0",
     "squizlabs/php_codesniffer": "^3.0",
-    "orchestra/testbench": "^4.0|^5.0|^6.0|^7.0",
-    "doctrine/dbal": "^2.9"
+    "orchestra/testbench": "^3.0|^4.0|^5.0|^6.0|^7.0"
   },
   "extra": {
     "laravel": {