diff --git a/composer.json b/composer.json
index dfc79fa..ee67f21 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
         "satooshi/php-coveralls": "dev-master"
     },
     "require": {
-        "php": ">=5.4"
+        "php": ">=5.3"
     },
     "autoload": {
         "psr-4": {
diff --git a/tests/travis.sh b/tests/travis.sh
index 292bc4d..89a9a52 100755
--- a/tests/travis.sh
+++ b/tests/travis.sh
@@ -2,7 +2,7 @@
 
 VERSION=`phpenv version-name`
 
-if [ "$VERSION" == "hhvm" ]
+if [ "${VERSION}" = 'hhvm' ]
 then
     PHPINI=/etc/hhvm/php.ini
 else