diff --git a/.travis.yml b/.travis.yml
index 6d490be..75a1f2b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,10 +1,9 @@
 language: php
 
 php:
-  - 5.6
-  - 7.0
-  - 7.1
   - 7.2
+  - 7.3
+  - 7.4
   - nightly
 
 matrix:
@@ -20,4 +19,4 @@ before_script:
   - travis_retry composer update ${COMPOSER_FLAGS} --no-interaction --prefer-dist
 
 script:
-  - vendor/bin/phpunit
+  - vendor/bin/phpunit --no-coverage
diff --git a/composer.json b/composer.json
index c3d0d0b..f4e9459 100644
--- a/composer.json
+++ b/composer.json
@@ -15,11 +15,11 @@
         }
     ],
     "require": {
-        "composer/composer": "~1.4"
+        "composer/composer": ">=1.4"
     },
     "require-dev": {
-        "orchestra/testbench": "~3.0",
-        "phpunit/phpunit": "^6.2|^5.6"
+        "orchestra/testbench": ">=3.0",
+        "phpunit/phpunit": ">=5.6"
     },
     "autoload": {
         "psr-4": {
diff --git a/tests/HooksTest.php b/tests/HooksTest.php
index d2212b2..1715843 100644
--- a/tests/HooksTest.php
+++ b/tests/HooksTest.php
@@ -14,7 +14,7 @@ class HooksTest extends TestCase
 {
     const COMPOSER_REPOSITORY = 'https://testing.larapack.io';
 
-    public function setUp()
+    public function setUp(): void
     {
         // Set Hooks environment
         Hooks::setMemoryLimit('5G');
diff --git a/tests/TestCase.php b/tests/TestCase.php
index be5a6cb..2b1ebc4 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -16,7 +16,7 @@ protected function getPackageProviders($app)
     /**
      * Setup the test environment.
      */
-    public function setUp()
+    public function setUp(): void
     {
         parent::setUp();
 
@@ -65,7 +65,7 @@ public function setUp()
         $this->artisan('migrate');
     }
 
-    public function tearDown()
+    public function tearDown(): void
     {
         // Cleanup old hooks before testing
         app(Filesystem::class)->deleteDirectory(base_path('hooks'));