diff --git a/CITATION.cff b/CITATION.cff
index 2f6bc17d..a98fd1d8 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -159,9 +159,6 @@ references:
     email: jeroen@berkeley.edu
     orcid: https://orcid.org/0000-0002-4035-0289
   year: '2024'
-  identifiers:
-  - type: url
-    value: https://curl.se/libcurl/
 - type: software
   title: ggplot2
   abstract: 'ggplot2: Create Elegant Data Visualisations Using the Grammar of Graphics'