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How should you pin your npm dependencies and why?

Getting in-depth on making your application updated and safe

Niccolò Belli
Mar 7, 2019 · 8 min read

What is pinning and why is it so important?

Why did package managers default to semver?

What happens when semver fails?

Tests can fail either

Downsides of pinning



Upgrade noise

How to pin packages

package.json and the sub-dependencies problem

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Even if we pin @angular/compiler-cli we would still be exposed to dozens of sub-dependencies

lock files to the rescue

Why not both?


An important note about libraries

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