diff --git a/README.md b/README.md
index d3bf33d..9480333 100644
--- a/README.md
+++ b/README.md
@@ -208,7 +208,7 @@ There are currently the following built-in modifiers:
 - `@values`: Returns an array of values for an object.
 - `@tostr`: Converts json to a string. Wraps a json string.
 - `@fromstr`: Converts a string from json. Unwraps a json string.
-- `@group`: Groups arrays of objects. See e4fc67c.
+- `@group`: Groups arrays of objects. See e4fc67c92aeebf2089fabc7872f010e340d105db
 
 ### Modifier arguments