diff --git a/.travis.yml b/.travis.yml
index 7fe96e74..a3ca4eda 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,8 @@ language: php
 
 matrix:
   include:
+    - php: 5.3
+      dist: precise
     - php: 5.4
       dist: precise
     - php: 5.5.9
diff --git a/tests/Unit/File/ASN1Test.php b/tests/Unit/File/ASN1Test.php
index b75333b7..3a44bdc4 100644
--- a/tests/Unit/File/ASN1Test.php
+++ b/tests/Unit/File/ASN1Test.php
@@ -369,21 +369,21 @@ class Unit_File_ASN1Test extends PhpseclibTestCase
      */
     public function testExplicitImplicitDate()
     {
-        $map = [
+        $map = array(
             'type'     => ASN1::TYPE_SEQUENCE,
-            'children' => [
-                'notBefore' => [
+            'children' => array(
+                'notBefore' => array(
                                              'constant' => 0,
                                              'optional' => true,
                                              'implicit' => true,
-                                             'type' => ASN1::TYPE_GENERALIZED_TIME],
-                'notAfter'  => [
+                                             'type' => ASN1::TYPE_GENERALIZED_TIME),
+                'notAfter'  => array(
                                              'constant' => 1,
                                              'optional' => true,
                                              'implicit' => true,
-                                             'type' => ASN1::TYPE_GENERALIZED_TIME]
-            ]
-        ];
+                                             'type' => ASN1::TYPE_GENERALIZED_TIME)
+            )
+        );
 
         $asn1 = new ASN1();
         $a = pack('H*', '3026a011180f32303137303432313039303535305aa111180f32303138303432313230353935395a');
diff --git a/tests/Unit/File/X509/X509Test.php b/tests/Unit/File/X509/X509Test.php
index 6c0879c2..9df21d97 100644
--- a/tests/Unit/File/X509/X509Test.php
+++ b/tests/Unit/File/X509/X509Test.php
@@ -795,6 +795,6 @@ ut3+b2Xvzq8yzmHMFtLIJ6Afu1jJpqD82BUAFcvi5vhnP8M7b974R18WCOpgNQvXDI+2/8ZINeU=
 -----END CERTIFICATE-----');
         $r = $x509->saveX509($r);
         $r = $x509->loadX509($r);
-        $this->assertSame($r['tbsCertificate']['extensions'][5]['extnValue']['excludedSubtrees'][1]['base']['iPAddress'], ['0.0.0.0', '0.0.0.0']);
+        $this->assertSame($r['tbsCertificate']['extensions'][5]['extnValue']['excludedSubtrees'][1]['base']['iPAddress'], array('0.0.0.0', '0.0.0.0'));
     }
 }
diff --git a/tests/Unit/Math/BigInteger/TestCase.php b/tests/Unit/Math/BigInteger/TestCase.php
index 0d37a8c4..efef0a7d 100644
--- a/tests/Unit/Math/BigInteger/TestCase.php
+++ b/tests/Unit/Math/BigInteger/TestCase.php
@@ -434,10 +434,10 @@ abstract class Unit_Math_BigInteger_TestCase extends PhpseclibTestCase
 
     public function testNegativePrecision()
     {
-        $vals = [
+        $vals = array(
             '-9223372036854775808', // eg. 8000 0000 0000 0000
             '-1'
-        ];
+        );
         foreach ($vals as $val) {
             $x = $this->getInstance($val);
             $x->setPrecision(64); // ie. 8 bytes