diff --git a/.travis.yml b/.travis.yml
index 5ffe034..7fd157a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,8 +4,6 @@ dist: bionic
 
 matrix:
   include:
-  - php: 7.1
-  - php: 7.2
   - php: 7.3
   - php: 7.4
     env: ANALYSIS='true'
diff --git a/composer.json b/composer.json
index 83b351a..cd5e0ef 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
         }
     ],
     "require": {
-        "php": "^7.1 || ^8.0",
+        "php": "^7.3 || ^8.0",
         "psr/http-message": "^1.0"
     },
     "autoload": {
@@ -28,8 +28,8 @@
         }
     },
     "require-dev": {
-        "phpunit/phpunit": "^7.0 || ^8.0",
-        "slim/psr7": "^0.6 || ^1",
+        "phpunit/phpunit": "^8.0",
+        "slim/psr7": "^1",
         "squizlabs/php_codesniffer": "^3.5"
     },
     "scripts": {