diff --git a/NEWS.md b/NEWS.md
index 594403165..f796d2bd2 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -15,6 +15,7 @@
     estimate_infections()
   ```
   
+- Added support for fitting  the susceptible population size. By @seabbs in #904 and reviewed by @sbfnk.
 - A bug was fixed where the initial growth was never estimated (i.e. the prior mean was always zero). By @sbfnk in #853 and reviewed by @seabbs.
 - A bug was fixed where an internal function for applying a default cdf cutoff failed due to a difference a vector length issue. By @jamesmbaazam in #858 and reviewed by @sbfnk.
 - All parameters have been changed to the new parameter interface. By @sbfnk in #871 and reviewed by @seabbs.