diff --git a/.travis.yml b/.travis.yml
index 0e432f5..7e6d5c1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,8 +16,9 @@ before_install:
     - sudo apt-get install zlib1g-dev
     - pecl channel-update pecl.php.net
     - pecl config-set preferred_state beta
-    - echo 'yes' | pecl install memcache
+    - echo 'yes' | pecl install memcache-4.0.5.2
     - echo "extension = memcache.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
+    - phpenv config-rm xdebug.ini
 
 install:
     - composer update --prefer-dist --prefer-stable