# About ray version 1.8.0 for MARLlib

**URL:** <https://discuss.ray.io/t/about-ray-version-1-8-0-for-marllib/12184>\
**Category:** Uncategorized\
**Created:** [September 19, 2023, 3:09pm UTC](https://discuss.ray.io/t/about-ray-version-1-8-0-for-marllib/12184 "2023-09-19T15:09:37Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Nafisa\_Naznin](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/nafisa_naznin/32/5073_2.png) [@Nafisa\_Naznin](https://discuss.ray.io/u/Nafisa_Naznin)\
**Post date:** [September 19, 2023, 3:09pm UTC](https://discuss.ray.io/t/about-ray-version-1-8-0-for-marllib/12184/1 "2023-09-19T15:09:37Z")

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I want to install MARLlib on my PC. But it has dependency with ray == 1.8.0. Pip is telling me that this version is not available. Is there any way I can install ray 1.8.0? Thanks in advance.

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**Author:** ![mannyv](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/mannyv/32/606_2.png) [@mannyv](https://discuss.ray.io/u/mannyv)\
**Post date:** [September 19, 2023, 4:28pm UTC](https://discuss.ray.io/t/about-ray-version-1-8-0-for-marllib/12184/2 "2023-09-19T16:28:00Z")

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Hi @Nafisa_Naznin,

Here are the versions that are available for ray 1.8. My guess is that you are trying to install it with python version \> 3.9?

> **[ray](https://pypi.org/project/ray/1.8.0/#files)**
>
> Ray provides a simple, universal API for building distributed applications.

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<div class="post-metadata">

**Author:** ![Nafisa\_Naznin](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/nafisa_naznin/32/5073_2.png) [@Nafisa\_Naznin](https://discuss.ray.io/u/Nafisa_Naznin)\
**Post date:** [September 20, 2023, 2:17pm UTC](https://discuss.ray.io/t/about-ray-version-1-8-0-for-marllib/12184/3 "2023-09-20T14:17:40Z")

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Hello @mannyv, yes the version is 3.10.12

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**Author:** ![mannyv](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/mannyv/32/606_2.png) [@mannyv](https://discuss.ray.io/u/mannyv)\
**Post date:** [September 20, 2023, 2:44pm UTC](https://discuss.ray.io/t/about-ray-version-1-8-0-for-marllib/12184/4 "2023-09-20T14:44:20Z")

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Then you will need to make an environment with python \<= 3.9 to pip install ray 1.8

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<div class="post-metadata">

**Author:** ![Nafisa\_Naznin](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/nafisa_naznin/32/5073_2.png) [@Nafisa\_Naznin](https://discuss.ray.io/u/Nafisa_Naznin)\
**Post date:** [September 20, 2023, 3:25pm UTC](https://discuss.ray.io/t/about-ray-version-1-8-0-for-marllib/12184/5 "2023-09-20T15:25:28Z")

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Thank you very much.