diff --git a/content/newsletter/ML_Newsletter_v4.pdf b/content/newsletter/ML_Newsletter_v4.pdf
new file mode 100644
index 0000000..00201af
Binary files /dev/null and b/content/newsletter/ML_Newsletter_v4.pdf differ
diff --git a/content/newsletter/newsletters.md b/content/newsletter/newsletters.md
index 2ae353d..0ee23c4 100644
--- a/content/newsletter/newsletters.md
+++ b/content/newsletter/newsletters.md
@@ -7,3 +7,5 @@ For the latest news in the CMS ML group world, check out our newsletters
 [volume 2](ML_Newsletter_v2.pdf)
 
 [volume 3](ML_Newsletter_v3.pdf)
+
+[volume 4](ML_Newsletter_v4.pdf)