diff --git a/CITATION.cff b/CITATION.cff
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--- /dev/null
+++ b/CITATION.cff
@@ -0,0 +1,14 @@
+cff-version: 1.1.0
+message: "If you use this software, please cite it as below."
+authors: 
+  - family-names: Lohmann
+    given-names: Niels
+    orcid: https://orcid.org/0000-0001-9037-795X
+    email: mail@nlohmann.me
+    website: https://nlohmann.me
+title: "JSON for Modern C++"
+version: 3.9.1
+date-released: 2021
+license: MIT
+repository-code: "https://github.com/nlohmann"
+url: https://json.nlohmann.me