diff --git a/administrator/components/com_installer/models/warnings.php b/administrator/components/com_installer/models/warnings.php
index 3f22b1a928ee5..41e10e23d8249 100644
--- a/administrator/components/com_installer/models/warnings.php
+++ b/administrator/components/com_installer/models/warnings.php
@@ -127,13 +127,13 @@ public function getItems()
 					'description' => JText::_('COM_INSTALLER_MSG_WARNINGS_UPLOADBIGGERTHANPOSTDESC'));
 		}
 
-		if ($post_max_size < (4 * 1024 * 1024)) // 4MB
+		if ($post_max_size < (8 * 1024 * 1024)) // 8MB
 		{
 			$messages[] = array('message' => JText::_('COM_INSTALLER_MSG_WARNINGS_SMALLPOSTSIZE'),
 					'description' => JText::_('COM_INSTALLER_MSG_WARNINGS_SMALLPOSTSIZEDESC'));
 		}
 
-		if ($upload_max_filesize < (4 * 1024 * 1024)) // 4MB
+		if ($upload_max_filesize < (8 * 1024 * 1024)) // 8MB
 		{
 			$messages[] = array('message' => JText::_('COM_INSTALLER_MSG_WARNINGS_SMALLUPLOADSIZE'),
 					'description' => JText::_('COM_INSTALLER_MSG_WARNINGS_SMALLUPLOADSIZEDESC'));
diff --git a/administrator/language/en-GB/en-GB.com_installer.ini b/administrator/language/en-GB/en-GB.com_installer.ini
index 5f8d5628e16b9..c7e399f2f31fd 100644
--- a/administrator/language/en-GB/en-GB.com_installer.ini
+++ b/administrator/language/en-GB/en-GB.com_installer.ini
@@ -124,9 +124,9 @@ COM_INSTALLER_MSG_WARNINGS_PHPUPLOADNOTSETDESC="The PHP temporary directory is t
 COM_INSTALLER_MSG_WARNINGS_PHPUPLOADNOTWRITEABLE="The PHP temporary directory is not writeable"
 COM_INSTALLER_MSG_WARNINGS_PHPUPLOADNOTWRITEABLEDESC="The PHP temporary directory is not writeable by the Joomla! instance, which may cause issues when attempting to upload extensions to Joomla!. If you are having issues uploading extensions, check the '%s' and set it to be writeable and see if this fixes the issue."
 COM_INSTALLER_MSG_WARNINGS_SMALLPOSTSIZE="Small PHP maximum POST size"
-COM_INSTALLER_MSG_WARNINGS_SMALLPOSTSIZEDESC="The maximum POST size sets the most amount of data that can be sent via POST to the server. This includes form submissions for articles, media (images, videos) and extensions. This value is less than 2MB which may impact on uploading large extensions. This is set in the php.ini under post_max_size"
-COM_INSTALLER_MSG_WARNINGS_SMALLUPLOADSIZE="Small PHP file upload size"
-COM_INSTALLER_MSG_WARNINGS_SMALLUPLOADSIZEDESC="The maximum file size for uploads is set to less than 2MB which may impact on uploading large extensions."
+COM_INSTALLER_MSG_WARNINGS_SMALLPOSTSIZEDESC="The maximum POST size sets the most amount of data that can be sent via POST to the server. This includes form submissions for articles, media (images, videos) and extensions. This value is less than 8MB which may impact on uploading large extensions. This is set in the php.ini under post_max_size"
+COM_INSTALLER_MSG_WARNINGS_SMALLUPLOADSIZE="Maximum PHP file upload size is too small: This is set in php.ini in both upload_max_filesize and post_max_size settings of your PHP settings (located in php.ini and/or .htaccess file)"
+COM_INSTALLER_MSG_WARNINGS_SMALLUPLOADSIZEDESC="The maximum file size for uploads is set to less than 8MB which may impact on uploading large extensions."
 COM_INSTALLER_MSG_WARNINGS_UPDATE_NOTICE="Before updating ensure that the update is compatible with your Joomla! installation."
 COM_INSTALLER_MSG_WARNINGS_UPLOADBIGGERTHANPOST="PHP Upload Size bigger than POST size"
 COM_INSTALLER_MSG_WARNINGS_UPLOADBIGGERTHANPOSTDESC="The value of the upload_max_filesize in the php.ini file is greater than the post_max_size variable. The post_max_size variable will take precedence here and block requests larger than it. This is generally a server misconfiguration when trying to increase upload sizes. Please increase the upload_max_filesize to at least match the post_max_size variable or vice versa"