diff --git a/.travis.yml b/.travis.yml
index aeb269b..a4596c0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,8 @@
 language: php
 
+env:
+  - COVERALLS_PHP_VERSION="5.5"
+
 php:
   - 5.4
   - 5.5
@@ -17,10 +20,9 @@ before_install:
 
 install:
   - composer install --no-interaction --prefer-source --dev
-  - composer require satooshi/php-coveralls:dev-master
 
 script:
   - phpunit --coverage-clover tests/coverage-clover.xml
 
 after_script:
-  - vendor/bin/coveralls -v
+  - tests/bin/coveralls
diff --git a/tests/bin/coveralls b/tests/bin/coveralls
new file mode 100755
index 0000000..9c08975
--- /dev/null
+++ b/tests/bin/coveralls
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+if [ "${COVERALLS_PHP_VERSION}" = "$(phpenv version-name)" ]; then
+   composer require satooshi/php-coveralls:dev-master
+   vendor/bin/coveralls -v
+fi
+