diff --git a/.travis.yml b/.travis.yml
index 98371d1..02ad7a8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,14 +3,13 @@ language: php
 
 # Versions of PHP you want your project run with.
 php:
-  - 7.2
   - 7.3
   - 7.4
 
 # Commands to be run before your environment runs.
 before_script:
   - composer self-update
-  - composer install
+  - composer install --prefer-source --no-interaction --dev
 
 # Commands you want to run that will verify your build.
 script: phpunit
diff --git a/composer.json b/composer.json
index 3d64547..32119b9 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
         }
     },
     "require": {
-        "php" : ">=7"
+        "php" : ">=7.2"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.5"