diff --git a/README.md b/README.md
index 1f6a8438..0052f486 100644
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@@ -62,7 +62,9 @@ hgrid.write("/path/to/output/file.2dm", fmt='2dm')
 ## References
 
 If you used this software as part of your work, please use the following citation format.
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 Jaime R Calzada, Linlin Cui, & Joseph Zhang. (2023). schism-dev/pyschism: v0.1.5 (v0.1.5). Zenodo. https://doi.org/10.5281/zenodo.7623122
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