diff --git a/bin/summarize_denovo.rb b/bin/summarize_denovo.rb
index 996e994..f23439a 100755
--- a/bin/summarize_denovo.rb
+++ b/bin/summarize_denovo.rb
@@ -13,8 +13,8 @@
 # <http://creativecommons.org/publicdomain/zero/1.0/>.
  
 # We politely request that this work be cited as:
-# Armstrong, E.E. & M.G. Campana. 2022. RatesTools: a Nextflow pipeline for detecting
-# de novo germline mutations in pedigree sequence data. Bioinformatics. btac784.
+# Armstrong, E.E. & M.G. Campana. 2023. RatesTools: a Nextflow pipeline for detecting
+# de novo germline mutations in pedigree sequence data. Bioinformatics. 39: btac784.
 # 10.1093/bioinformatics/btac784.
 #----------------------------------------------------------------------------------------