# Update Conda JupyterLab kernel with Julia 1.4.2

**URL:** https://discourse.julialang.org/t/update-conda-jupyterlab-kernel-with-julia-1-4-2/41289
**Category:** Tooling
**Created:** [June 12, 2020, 6:37pm UTC](https://discourse.julialang.org/t/update-conda-jupyterlab-kernel-with-julia-1-4-2/41289 "2020-06-12T18:37:09Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![bobmccrory](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/bobmccrory/32/5137_2.png) [@bobmccrory](https://discourse.julialang.org/u/bobmccrory)
#### Post date: [June 12, 2020, 6:37pm UTC](https://discourse.julialang.org/t/update-conda-jupyterlab-kernel-with-julia-1-4-2/41289/1 "2020-06-12T18:37:09Z")

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I’ve been building Conda JupyterLab notebooks with a Julia 1.4.1 kernel. I’ve downloaded 1.4.2, but JupyterLab doesn’t see it. Does anyone know how to fix this? Thanks.

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### Author: ![EricChameroy](https://avatars.discourse-cdn.com/v4/letter/e/7ab992/32.png) [@EricChameroy](https://discourse.julialang.org/u/EricChameroy)
#### Post date: [June 12, 2020, 6:44pm UTC](https://discourse.julialang.org/t/update-conda-jupyterlab-kernel-with-julia-1-4-2/41289/2 "2020-06-12T18:44:47Z")

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Hi Robert. Running _Pkg.build IJulia_ should install an updated kernel.

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### Author: ![bobmccrory](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/bobmccrory/32/5137_2.png) [@bobmccrory](https://discourse.julialang.org/u/bobmccrory)
#### Post date: [June 12, 2020, 7:10pm UTC](https://discourse.julialang.org/t/update-conda-jupyterlab-kernel-with-julia-1-4-2/41289/3 "2020-06-12T19:10:10Z")

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Eric, thanks for answering, but that didn’t work (I think). I installed 1.4.2 from the Julia website, then ran the Julia REPL from Atom, went into package mode, and typed “build IJulia”, and it dutifully built 1.4.1.

So, no luck. Maybe I have to move 1.4.2 to where Conda can find it? Any ideas?

Thanks again.

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### Author: ![EricChameroy](https://avatars.discourse-cdn.com/v4/letter/e/7ab992/32.png) [@EricChameroy](https://discourse.julialang.org/u/EricChameroy)
#### Post date: [June 12, 2020, 7:53pm UTC](https://discourse.julialang.org/t/update-conda-jupyterlab-kernel-with-julia-1-4-2/41289/4 "2020-06-12T19:53:33Z")

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Sorry Robert, I’m out of ideas. I don’t use Atom, so I don’t know if that has something to do with it. I had a similar issue to yours, but using JupyterLab. I rebuilt IJulia and it seemed to do the trick. Maybe I’m wrong.

Hopefully someone else will chime in.

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### Author: ![bobmccrory](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/bobmccrory/32/5137_2.png) [@bobmccrory](https://discourse.julialang.org/u/bobmccrory)
#### Post date: [June 12, 2020, 8:15pm UTC](https://discourse.julialang.org/t/update-conda-jupyterlab-kernel-with-julia-1-4-2/41289/5 "2020-06-12T20:15:50Z")

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Hi, Eric. I think my problems stem from using JuliaPro, which I didn’t mention. If I install JuliaPro 1.4.2, Conda and JupyterLab picked up Julia 1.4.2, and they seem to work, though I did have to reinstall packages, like Plots, and now I have two versions of JuliaPro on my machine.

Maybe someone more experienced than me can tell me how to manage Julia, JuliaPro, Conda, and Jupyter on a single (Windows) machine.

Thanks for your interest and help.

Bob