diff --git a/README.md b/README.md
index 93925230..ff85af0e 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,7 @@ width, height | number
 left, right, top, bottom | number
 margin, marginLeft, marginRight, marginTop, marginBottom | positive number
 padding, paddingLeft, paddingRight, paddingTop, paddingBottom | positive number
+borderWidth, borderLeftWidth, borderRightWidth, borderTopWidth, borderBottomWidth | positive number
 flexDirection | 'column', 'row'
 justifyContent | 'flex-start', 'center', 'flex-end', 'space-between', 'space-around'
 alignItems, alignSelf | 'flex-start', 'center', 'flex-end', 'stretch'