# JPG images with bad quality after kirby update

**URL:** <https://forum.getkirby.com/t/jpg-images-with-bad-quality-after-kirby-update/29425>\
**Category:** Questions\
**Tags:** v3\
**Created:** [September 4, 2023, 12:18pm UTC](https://forum.getkirby.com/t/jpg-images-with-bad-quality-after-kirby-update/29425 "2023-09-04T12:18:20Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![mschmidt](https://avatars.discourse-cdn.com/v4/letter/m/97f17d/32.png) [@mschmidt](https://forum.getkirby.com/u/mschmidt)\
**Post date:** [September 4, 2023, 12:18pm UTC](https://forum.getkirby.com/t/jpg-images-with-bad-quality-after-kirby-update/29425/1 "2023-09-04T12:18:20Z")

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after updating from kirby v 3.8.1.1 to kirby v 3.9.6.1 jpeg thumb images have very bad quality on the website and within panel image preview.

this strangely only happens on the webserver (not with the local dev project). at the same time Php version was also changed to 8.1

are there any known issues with jpeg compression with one of the newer kirby versions?

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**Author:** ![pesto](https://avatars.discourse-cdn.com/v4/letter/p/f04885/32.png) [@pesto](https://forum.getkirby.com/u/pesto)\
**Post date:** [September 4, 2023, 2:30pm UTC](https://forum.getkirby.com/t/jpg-images-with-bad-quality-after-kirby-update/29425/2 "2023-09-04T14:30:22Z")

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did you increase the kirby version number in composer.json and run `composer install` after dropping the new kirby-folder?

did you clear the ‘media’-folder?

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**Author:** ![mschmidt](https://avatars.discourse-cdn.com/v4/letter/m/97f17d/32.png) [@mschmidt](https://forum.getkirby.com/u/mschmidt)\
**Post date:** [September 5, 2023, 10:11am UTC](https://forum.getkirby.com/t/jpg-images-with-bad-quality-after-kirby-update/29425/3 "2023-09-05T10:11:59Z")

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here is what i did on the local project:

`composer update`

the require statement in composer.json reads like this

`"getkirby/cms": "^3.9"`

since composer is not used on the webserver, i deleted the kirby and media folders there. then copied the kirby folder from the local project to the webserver.

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<div class="post-metadata">

**Author:** ![mschmidt](https://avatars.discourse-cdn.com/v4/letter/m/97f17d/32.png) [@mschmidt](https://forum.getkirby.com/u/mschmidt)\
**Post date:** [September 6, 2023, 1:43pm UTC](https://forum.getkirby.com/t/jpg-images-with-bad-quality-after-kirby-update/29425/4 "2023-09-06T13:43:40Z")

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i was trying to solve this within the configuration setting quality for thumbs, but no success unfortunately.

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**Author:** ![bnomei](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.getkirby.com/bnomei/32/775_2.png) [@bnomei](https://forum.getkirby.com/u/bnomei)\
**Post date:** [September 6, 2023, 2:00pm UTC](https://forum.getkirby.com/t/jpg-images-with-bad-quality-after-kirby-update/29425/5 "2023-09-06T14:00:19Z")

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maybe old `gd` or no `im` (imagick) version.

> **[thumbs](https://getkirby.com/docs/reference/system/options/thumbs#thumbs-driver)**
>
> Set default configuration for thumbs