**Importance of Pinning Dependency Versions** **Title:** A cautionary tale about the importance of pinning dependency versions in software development. A developer recently shared a personal experience where a dependency versioning issue caused their database to crash, resulting in lost potential customers. This incident highlights the significance of explicitly specifying all dependency versions down to the patch level to maintain control and prevent unpredictable crashes. **Background:** Dependency management systems like Docker, Python, Maven, Gradle, and NPM can automatically pull newer versions of dependencies without warning. However, this can lead to unexpected behavior, as seen in the developer's experience. **Key takeaway:** Pinning dependency versions ensures that only specific versions are used, preventing unwanted changes and potential crashes. **Importance:** This mistake is easy to make, even for experienced developers, emphasizing the need for attention to detail and proper dependency management practices. Source: https://dev.to/mlamina/why-pinning-your-dependency-versions-matters-n24