diff --git a/.travis.yml b/.travis.yml
index 3d93756..169cf40 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,6 +21,9 @@ branches:
   only:
     - master
 
+before_install:
+    - phpenv config-add travis.php.ini
+
 # install dependencies
 install:
     - travis_wait composer install
diff --git a/travis.php.ini b/travis.php.ini
new file mode 100644
index 0000000..272e7db
--- /dev/null
+++ b/travis.php.ini
@@ -0,0 +1,3 @@
+[PHP]
+
+memory_limit = 3G