diff --git a/NEWS.md b/NEWS.md
index 62253fda..8eea15c4 100755
--- a/NEWS.md
+++ b/NEWS.md
@@ -3,7 +3,7 @@
 
 #### Changed
 * Removed deprecated functions `guess_mo()`, `guess_atc()`, `EUCAST_rules()`, `interpretive_reading()`
-* Added more old taxonomic names to the `microorganisms.old` data set, which leads to better results finding when using the `as.mo()` function
+* Added ~5,000 more old taxonomic names to the `microorganisms.old` data set, which leads to better results finding when using the `as.mo()` function
 * Frequency tables of microbial IDs speed improvement
 * Removed all hardcoded EUCAST rules and replaced them with a new reference file: `./inst/eucast/eucast.tsv`.