diff --git a/NEWS.md b/NEWS.md
index 406db304..cb3db312 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -4,6 +4,7 @@
 - The function `calculate_player_stats()` now summarises target share and air yards share correctly when called with argument `weekly = FALSE` (#413)
 - The function `calculate_player_stats()` now returns the opponent team when called with argument `weekly = TRUE` (#414)
 - The function `calculate_player_stats_def()` no longer errors when small subsets of pbp data are missing stats. (#415)
+- The function `calculate_series_conversion_rates()` no longer returns `NA` values if a small subset of pbp data is missing series on offense or defense. (#417)
 
 # nflfastR 4.5.1