diff --git a/.travis.yml b/.travis.yml
index 8b0735b..11bdf5e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,7 @@
 language: php
 
 php:
-  - '7.1'
-  - '7.2'
+  - '7.4'
   - nightly
 
 env:
diff --git a/composer.json b/composer.json
index aaf2626..f6362be 100644
--- a/composer.json
+++ b/composer.json
@@ -22,16 +22,16 @@
         }
     ],
     "require": {
-        "php": "^7.1"
+        "php": "^7.4"
     },
     "require-dev": {
         "illuminate/support": "^5.6",
         "matthiasnoback/symfony-dependency-injection-test": "^3.0",
         "orchestra/testbench": "~3.0",
-        "phpoffice/phpspreadsheet": "^1.3",
-        "symfony/config": "^3.4 || ^4.0",
-        "symfony/dependency-injection": "^3.4 || ^4.0",
-        "symfony/http-kernel": "^3.4 || ^4.0"
+        "phpoffice/phpspreadsheet": "^1.15",
+        "symfony/config": "^4.4 || ^5.1",
+        "symfony/dependency-injection": "^4.4 || ^5.1",
+        "symfony/http-kernel": "^4.4 || ^5.1.5"
     },
     "config": {
         "sort-packages": true