diff --git a/README.md b/README.md
index 1f090788..747f23b9 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ Three directories should be included herein:
 
 - `dockerfiles`: contains a __DGGRID__ dockerfile and instructions for use
 
-User documentation for __DGGRID__ is in `dggridManualV77.pdf`.
+User documentation for __DGGRID__ is in `dggridManualV81b.pdf`.
 
 ## Terms of Use