# Can't Update PHP Version
**URL:** https://forum.mautic.org/t/cant-update-php-version/3948
**Category:** Product Support
**Created:** [June 20, 2016, 11:41am UTC](https://forum.mautic.org/t/cant-update-php-version/3948 "2016-06-20T11:41:14Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@vishwajeet](https://forum.mautic.org/u/vishwajeet)
#### Post date: [June 20, 2016, 11:41am UTC](https://forum.mautic.org/t/cant-update-php-version/3948/1 "2016-06-20T11:41:14Z")
Hello,
I have latest version of mautic 1.4.1 and using it from 1.3. Current version is running smoothly without any problem. I have PHP version 5.3 and want to upgrade for other reason to 5.4 or 5.5 or 5.6 but whenever I upgrade PHP version to any of them the mautic installation goes offline and all forms stopped to work. I tried from 5.3 to 5.4, 5.5, 5.6 and all three attempts are causing to stop mautic.
Any help to resolve this issue?
Thanks in advance.
Vishwajeet
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### Author:  [@vishwajeet](https://forum.mautic.org/u/vishwajeet)
#### Post date: [June 20, 2016, 11:41am UTC](https://forum.mautic.org/t/cant-update-php-version/3948/2 "2016-06-20T11:41:14Z")
Hello,
I have latest version of mautic 1.4.1 and using it from 1.3. Current version is running smoothly without any problem. I have PHP version 5.3 and want to upgrade for other reason to 5.4 or 5.5 or 5.6 but whenever I upgrade PHP version to any of them the mautic installation goes offline and all forms stopped to work. I tried from 5.3 to 5.4, 5.5, 5.6 and all three attempts are causing to stop mautic.
Any help to resolve this issue?
Thanks in advance.
Vishwajeet
---
### Author:  [@vishwajeet](https://forum.mautic.org/u/vishwajeet)
#### Post date: [June 22, 2016, 6:30am UTC](https://forum.mautic.org/t/cant-update-php-version/3948/3 "2016-06-22T06:30:07Z")
thanks @dirk_s , I forgot about clearing cache. The issue is now resolved.
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### Author:  [@dirk\_s](https://forum.mautic.org/u/dirk_s)
#### Post date: [June 20, 2016, 12:13pm UTC](https://forum.mautic.org/t/cant-update-php-version/3948/4 "2016-06-20T12:13:49Z")
Maybe you should delete your cache directory (subfolder of app directory)? My Mautic 1.4.1 runs smoothly with 5.6.22 currently. No problem with 5.5.9 either…
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### Author:  [@gamzehrealty](https://forum.mautic.org/u/gamzehrealty)
#### Post date: [February 23, 2017, 3:22am UTC](https://forum.mautic.org/t/cant-update-php-version/3948/5 "2017-02-23T03:22:49Z")
Hi,
I deleted and still not working. Anything else you recommend I do?
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### Author:  [@gamzehrealty](https://forum.mautic.org/u/gamzehrealty)
#### Post date: [February 23, 2017, 4:43am UTC](https://forum.mautic.org/t/cant-update-php-version/3948/6 "2017-02-23T04:43:55Z")
Few days ago when I tried to log in to mautic i got the following message.
## Your server does not meet the minimum PHP requirements. Mautic requires PHP version 5.6.19 while your server has 5.5.38. Please contact your host to update your PHP installation. Then i changed the php to 5.6 then We got following error while access [http://email.solidnnn.com/](http://email.solidnnn.com/)
[17-Feb-2017 21:59:32 UTC] PHP Fatal error: Class ‘LightSamlSymfonyBridgeBundleLightSamlSymfonyBridgeBundle’ not found in /home/investsolidcow/email.solidnnn.com/app/AppKernel.php on line 179