diff --git a/CITATION.cff b/CITATION.cff
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+cff-version: 1.2.0
+title: PyO3
+message: >-
+  If you use this software as part of a publication and wish to cite
+  it, please use the metadata from this file.
+type: software
+authors:
+  - name: PyO3 Project and Contributors
+    website: https://github.com/PyO3
+license: Apache-2.0