diff --git a/README.md b/README.md
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+++ b/README.md
@@ -5,6 +5,7 @@
 [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.1689985.svg)](https://doi.org/10.5281/zenodo.1689985)
 [![OpenSSF Best Practices](https://bestpractices.coreinfrastructure.org/projects/6915/badge)](https://bestpractices.coreinfrastructure.org/projects/6915)
 [![fair-software.eu](https://img.shields.io/badge/fair--software.eu-%E2%97%8F%20%20%E2%97%8F%20%20%E2%97%8B%20%20%E2%97%8F%20%20%E2%97%8F-yellow)](https://github.com/FairRootGroup/FairMQ/actions/workflows/fair-software.yml)
+[![Spack package](https://repology.org/badge/version-for-repo/spack/fairmq.svg)](https://repology.org/project/fairmq/versions)
 
 C++ Message Queuing Library and Framework