diff --git a/README.md b/README.md
index 408e34e..6ac9af2 100644
--- a/README.md
+++ b/README.md
@@ -113,7 +113,7 @@ Adds a new set of dimensions that will be associated to all metric values.
 
 **WARNING**: Every distinct value will result in a new CloudWatch Metric.
 If the cardinality of a particular value is expected to be high, you should consider
-using `setProperty` instead.
+using `set_property` instead.
 
 Requirements:
 
@@ -134,7 +134,7 @@ Explicitly override all dimensions. By default, this will disable the default di
 
 **WARNING**: Every distinct value will result in a new CloudWatch Metric.
 If the cardinality of a particular value is expected to be high, you should consider
-using `setProperty` instead.
+using `set_property` instead.
 
 Requirements: