diff --git a/.travis.yml b/.travis.yml
index 3c42ccf6..2f427e0c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,11 +6,11 @@ php:
     - 7.1
     - 7.2
     - 7.3
-    - nightly
+    - 7.4snapshot
 
 matrix:
     allow_failures:
-        - php: nightly
+        - php: 7.4snapshot
 
 branches:
     only:
diff --git a/composer.json b/composer.json
index 9c260e61..4a85b6af 100644
--- a/composer.json
+++ b/composer.json
@@ -14,6 +14,7 @@
     ],
     "prefer-stable": true,
     "require": {
+        "php": "^5.6 || ^7.0",
         "algolia/algoliasearch-client-php": "^1.23",
         "doctrine/common": "^2.5",
         "symfony/filesystem": "^3.4.0 || ^4.0.0",