diff --git a/composer.json b/composer.json
index 16e73ed..d5e6dc6 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,7 @@
   ],
   "minimum-stability": "stable",
   "require": {
-    "php-64bit": "^5.5 || ^7.0"
+    "php": "^5.5 || ^7.0"
   },
   "autoload": {
     "psr-4": {
diff --git a/src/PhpZip/Model/Entry/ZipAbstractEntry.php b/src/PhpZip/Model/Entry/ZipAbstractEntry.php
index 172b116..17f8d24 100644
--- a/src/PhpZip/Model/Entry/ZipAbstractEntry.php
+++ b/src/PhpZip/Model/Entry/ZipAbstractEntry.php
@@ -1,4 +1,5 @@
 <?php
+
 namespace PhpZip\Model\Entry;
 
 use PhpZip\Exception\InvalidArgumentException;
@@ -257,6 +258,7 @@ abstract class ZipAbstractEntry implements ZipEntry
     public function setCompressedSize($compressedSize)
     {
         if (self::UNKNOWN != $compressedSize) {
+            $compressedSize = sprintf('%u', $compressedSize);
             if (0 > $compressedSize || $compressedSize > 0x7fffffffffffffff) {
                 throw new ZipException("Compressed size out of range - " . $this->name);
             }
@@ -285,6 +287,7 @@ abstract class ZipAbstractEntry implements ZipEntry
     public function setSize($size)
     {
         if (self::UNKNOWN != $size) {
+            $size = sprintf('%u', $size);
             if (0 > $size || $size > 0x7fffffffffffffff) {
                 throw new ZipException("Uncompressed Size out of range - " . $this->name);
             }
@@ -310,6 +313,7 @@ abstract class ZipAbstractEntry implements ZipEntry
      */
     public function setOffset($offset)
     {
+        $offset = sprintf('%u', $offset);
         if (0 > $offset || $offset > 0x7fffffffffffffff) {
             throw new ZipException("Offset out of range - " . $this->name);
         }
@@ -523,6 +527,7 @@ abstract class ZipAbstractEntry implements ZipEntry
      */
     public function setDosTime($dosTime)
     {
+        $dosTime = sprintf('%u', $dosTime);
         if (0x00000000 > $dosTime || $dosTime > 0xffffffff) {
             throw new ZipException('DosTime out of range');
         }
@@ -554,6 +559,7 @@ abstract class ZipAbstractEntry implements ZipEntry
     {
         $known = self::UNKNOWN != $externalAttributes;
         if ($known) {
+            $externalAttributes = sprintf('%u', $externalAttributes);
             if (0x00000000 > $externalAttributes || $externalAttributes > 0xffffffff) {
                 throw new ZipException("external file attributes out of range - " . $this->name);
             }
@@ -847,6 +853,7 @@ abstract class ZipAbstractEntry implements ZipEntry
      */
     public function setCrc($crc)
     {
+        $crc = sprintf('%u', $crc);
         if (0x00000000 > $crc || $crc > 0xffffffff) {
             throw new ZipException("CRC-32 out of range - " . $this->name);
         }
diff --git a/src/PhpZip/Model/Entry/ZipNewEntry.php b/src/PhpZip/Model/Entry/ZipNewEntry.php
index 25d3e00..0fa5b35 100644
--- a/src/PhpZip/Model/Entry/ZipNewEntry.php
+++ b/src/PhpZip/Model/Entry/ZipNewEntry.php
@@ -258,7 +258,7 @@ abstract class ZipNewEntry extends ZipAbstractEntry
             } else {
                 fwrite($outputStream, pack('VV', $this->getCompressedSize(), $this->getSize()));
             }
-        } elseif ($this->getCompressedSize() !== $compressedSize) {
+        } elseif ($this->getCompressedSize() != $compressedSize) {
             throw new ZipException($this->getName()
                 . " (expected compressed entry size of "
                 . $this->getCompressedSize() . " bytes, but is actually " . $compressedSize . " bytes)");