diff --git a/README.md b/README.md
index acc9722..05b9eb1 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,11 @@ If I were using Windows, it might look like this:
 Set these aside for now and we'll pick them up in chapter 2.
 
 ## Changelog
+### v0.1.1 (2024-04-22)
+Fix Pandas `mean` example. More: Pandas changed their defaults to throw an
+error if you try to call this on string columns. Fixed example to explicitely
+only call it on numeric data.
+
 ### v0.1.0 (2024-04-16)
 Change scraping example to get data from worldfootball.net, since
 myfootballfacts.com was no longer working.
diff --git a/code/03_02_functions.py b/code/03_02_functions.py
index 55c771b..39a7774 100644
--- a/code/03_02_functions.py
+++ b/code/03_02_functions.py
@@ -16,8 +16,8 @@
 
 # book picks up here:
 
-pg.mean()
-pg.max()
+pg[['shot', 'goal', 'assist', 'pass', 'throw', 'corner']].mean()
+pg[['name', 'shot', 'goal', 'assist', 'pass', 'throw', 'corner']].max()
 
 # Axis
 pg[['shot', 'goal', 'assist', 'pass']].mean(axis=0)