diff --git a/go.mod b/go.mod
index 7f1d4d6..f02a860 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/upbound/function-cidr
 go 1.22.1
 
 require (
-	github.com/alecthomas/kong v0.9.0
+	github.com/alecthomas/kong v1.3.0
 	github.com/apparentlymart/go-cidr v1.1.0
 	github.com/crossplane/crossplane-runtime v1.15.1
 	github.com/crossplane/function-sdk-go v0.2.0
diff --git a/go.sum b/go.sum
index 3f4605e..c6358a5 100644
--- a/go.sum
+++ b/go.sum
@@ -6,6 +6,8 @@ github.com/alecthomas/assert/v2 v2.6.0 h1:o3WJwILtexrEUk3cUVal3oiQY2tfgr/FHWiz/v
 github.com/alecthomas/assert/v2 v2.6.0/go.mod h1:Bze95FyfUr7x34QZrjL+XP+0qgp/zg8yS+TtBj1WA3k=
 github.com/alecthomas/kong v0.9.0 h1:G5diXxc85KvoV2f0ZRVuMsi45IrBgx9zDNGNj165aPA=
 github.com/alecthomas/kong v0.9.0/go.mod h1:Y47y5gKfHp1hDc7CH7OeXgLIpp+Q2m1Ni0L5s3bI8Os=
+github.com/alecthomas/kong v1.3.0 h1:YJKuU6/TV2XOBtymafSeuzDvLAFR8cYMZiXVNLhAO6g=
+github.com/alecthomas/kong v1.3.0/go.mod h1:IDc8HyiouDdpdiEiY81iaEJM8rSIW6LzX8On4FCO0bE=
 github.com/alecthomas/repr v0.4.0 h1:GhI2A8MACjfegCPVq9f1FLvIBS+DrQ2KQBFZP1iFzXc=
 github.com/alecthomas/repr v0.4.0/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
 github.com/antchfx/htmlquery v1.2.4 h1:qLteofCMe/KGovBI6SQgmou2QNyedFUW+pE+BpeZ494=