diff --git a/.travis.yml b/.travis.yml
index f56de5d..15e6549 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,6 @@
 language: php
 
 php:
-  - 7.0
   - 7.1
 
 install:
diff --git a/composer.json b/composer.json
index 8de30aa..b122d7f 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
         "guzzlehttp/guzzle": "~6.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^7.0@dev"
+        "phpunit/phpunit": "~6.0"
     },
     "autoload": {
         "psr-4": {