diff --git a/go.mod b/go.mod
index bef9c21..277f463 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/alecthomas/kingpin/v2
 go 1.17
 
 require (
-	github.com/alecthomas/units v0.0.0-20240626203959-61d1e3462e30
+	github.com/alecthomas/units v0.0.0-20240927000941-0f3dac36c52b
 	github.com/stretchr/testify v1.9.0
 	github.com/xhit/go-str2duration/v2 v2.1.0
 )
diff --git a/go.sum b/go.sum
index d8e9ead..b3c6ff1 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-github.com/alecthomas/units v0.0.0-20240626203959-61d1e3462e30 h1:t3eaIm0rUkzbrIewtiFmMK5RXHej2XnoXNhxVsAYUfg=
-github.com/alecthomas/units v0.0.0-20240626203959-61d1e3462e30/go.mod h1:fvzegU4vN3H1qMT+8wDmzjAcDONcgo2/SZ/TyfdUOFs=
+github.com/alecthomas/units v0.0.0-20240927000941-0f3dac36c52b h1:mimo19zliBX/vSQ6PWWSL9lK8qwHozUj03+zLoEB8O0=
+github.com/alecthomas/units v0.0.0-20240927000941-0f3dac36c52b/go.mod h1:fvzegU4vN3H1qMT+8wDmzjAcDONcgo2/SZ/TyfdUOFs=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=