diff --git a/README.md b/README.md
index 3695acc..07ff2d4 100644
--- a/README.md
+++ b/README.md
@@ -19,3 +19,8 @@ or `conda`:
 
 Our [documentation](https://lammpsio.readthedocs.io) includes installation,
 examples, and commands.
+
+## Citing lammpsio
+
+When using `lammpsio` in published work, please cite:
+> C. L. Petix, M. Kundu, and M. P. Howard., lammpsio: Transparent and reproducible handling of LAMMPS particle data in Python. Journal of Open Source Software, 10(116), 8962 (2025). [doi:10.21105/joss.08962](https://doi.org/10.21105/joss.08962)
diff --git a/doc/source/index.rst b/doc/source/index.rst
index a5e7514..dec386d 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -28,3 +28,11 @@ in a variety of ways that improve workflow efficiency and reproducibility.
 
     ./credits
     ./license
+
+.. rubric:: Citing lammpsio
+
+When using ``lammpsio`` in published work, please cite:
+
+C. L. Petix, M. Kundu, and M. P. Howard., lammpsio: Transparent and
+reproducible handling of LAMMPS particle data in Python. *Journal of Open Source
+Software*, **10(116)**, 8962 (2025). `doi:10.21105/joss.08962 <https://doi.org/10.21105/joss.08962>`_