diff --git a/mongodb/README.md b/mongodb/README.md
index 8f10c65795f7a99863236303a5d71c0a94be43d6..1fed1348e4c172e1a2b3abd27a914eb43ecbffe4 100644
--- a/mongodb/README.md
+++ b/mongodb/README.md
@@ -42,3 +42,5 @@ See the next section for the list of configuration parameters for MongoDB.
 ### `mongodb.writeConcern` (default `safe`)
 
 ### `mongodb.maxconnections` (default `10`)
+
+### `mongodb.threadsAllowedToBlockForConnectionMultiplier` (default `5`)