diff --git a/README.md b/README.md
index 7778abd..f53e353 100644
--- a/README.md
+++ b/README.md
@@ -76,5 +76,5 @@ C:\Python27\ArcGIS10.5\python generate_heatmaps.py param-files\survey-2*.yaml
 Example usage:
 
 ```
-C:\Python27\ArcGIS10.4\python plot_heatmaps.py param-files\survey-2-avoca.yaml
+C:\Python27\ArcGIS10.5\python plot_heatmaps.py param-files\survey-2-avoca.yaml
 ```