diff --git a/.travis.yml b/.travis.yml
index f02bfb6..9f67213 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,11 +5,12 @@ dist: trusty
 sudo: false
 
 php:
+  - 7.0
   - 7.1
 
 matrix:
   include:
-    - php: 7.1
+    - php: 7.0
       env:
         - BUILD_PHAR=true
 
@@ -26,4 +27,4 @@ deploy:
   skip_cleanup: true
   on:
     tags: true
-    php: '7.1'
\ No newline at end of file
+    php: '7.0'
\ No newline at end of file
diff --git a/composer.json b/composer.json
index 80c7ccc..2af885f 100644
--- a/composer.json
+++ b/composer.json
@@ -36,7 +36,7 @@
   },
 
   "require": {
-    "php": "^7.1",
+    "php": "^7.0",
     "symfony/console": "@stable",
     "symfony/yaml": "@stable",
     "twig/twig": "@stable",