diff --git a/docs/refs.bib b/docs/refs.bib
index e34171e..f510cf4 100644
--- a/docs/refs.bib
+++ b/docs/refs.bib
@@ -53,7 +53,7 @@ @inproceedings{Baskaran2021
 file = {:Users/kumaran/Downloads/kumaran_baskaran.pdf:pdf},
 pages = {59--62},
 title = {{{P}y{B}{M}{R}{B}: {D}ata visualization tool for {B}io{M}ag{R}es{B}ank}},
-url={http://conference.scipy.org/proceedings/scipy2021/pdfs/kumaran_baskaran.pdf},
+doi={10.25080/majora-1b6fd038-00a},
 year = {2021}
 }
 
diff --git a/release_notes.md b/release_notes.md
index ad36027..b86e393 100644
--- a/release_notes.md
+++ b/release_notes.md
@@ -1,4 +1,5 @@
 3.0.9
 ------
-
     - Supported python versions updated
+
+