diff --git a/go.mod b/go.mod
index c2ab3c4..227ea9f 100644
--- a/go.mod
+++ b/go.mod
@@ -1,19 +1,19 @@
 module tuxpa.in/a/pprofweb
 
-go 1.21.4
+go 1.22.0
 
-toolchain go1.22.0
+toolchain go1.22.5
 
 require (
-	gfx.cafe/util/go v1.10.0
+	gfx.cafe/util/go v1.13.0
 	github.com/alecthomas/kong v0.9.0
-	github.com/go-chi/chi/v5 v5.0.12
-	github.com/google/pprof v0.0.0-20240528025155-186aa0362fba
+	github.com/go-chi/chi/v5 v5.1.0
+	github.com/google/pprof v0.0.0-20240727154555-813a5fbdbec8
 	github.com/rs/xid v1.5.0
 	github.com/spf13/afero v1.11.0
 )
 
 require (
 	github.com/ianlancetaylor/demangle v0.0.0-20240312041847-bd984b5ce465 // indirect
-	golang.org/x/text v0.15.0 // indirect
+	golang.org/x/text v0.16.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 056fcc0..3ef246a 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,7 @@
 gfx.cafe/util/go v1.10.0 h1:2J2QK3lBm9lZcjlQqWCDaR+SNNSgiT/yXdRH8PenY6o=
 gfx.cafe/util/go v1.10.0/go.mod h1:xzge01gF6zKOM3VztFGWuFlmlFX00pPkonZ3YU7NRSU=
+gfx.cafe/util/go v1.13.0 h1:ZNBFsHVKx3Nspb6l1MTwsj/lnV1M+0AhvlHbjtfj6s0=
+gfx.cafe/util/go v1.13.0/go.mod h1:69P+MuE7Bwz69cVgCTMG4adySzirioh3X5IFpE6MNcY=
 github.com/alecthomas/assert/v2 v2.6.0 h1:o3WJwILtexrEUk3cUVal3oiQY2tfgr/FHWiz/v2n4FU=
 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=
@@ -8,8 +10,12 @@ 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/go-chi/chi/v5 v5.0.12 h1:9euLV5sTrTNTRUU9POmDUvfxyj6LAABLUcEWO+JJb4s=
 github.com/go-chi/chi/v5 v5.0.12/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
+github.com/go-chi/chi/v5 v5.1.0 h1:acVI1TYaD+hhedDJ3r54HyA6sExp3HfXq7QWEEY/xMw=
+github.com/go-chi/chi/v5 v5.1.0/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
 github.com/google/pprof v0.0.0-20240528025155-186aa0362fba h1:ql1qNgCyOB7iAEk8JTNM+zJrgIbnyCKX/wdlyPufP5g=
 github.com/google/pprof v0.0.0-20240528025155-186aa0362fba/go.mod h1:K1liHPHnj73Fdn/EKuT8nrFqBihUSKXoLYU0BuatOYo=
+github.com/google/pprof v0.0.0-20240727154555-813a5fbdbec8 h1:FKHo8hFI3A+7w0aUQuYXQ+6EN5stWmeY/AZqtM8xk9k=
+github.com/google/pprof v0.0.0-20240727154555-813a5fbdbec8/go.mod h1:K1liHPHnj73Fdn/EKuT8nrFqBihUSKXoLYU0BuatOYo=
 github.com/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM=
 github.com/hexops/gotextdiff v1.0.3/go.mod h1:pSWU5MAI3yDq+fZBTazCSJysOMbxWL1BSow5/V2vxeg=
 github.com/ianlancetaylor/demangle v0.0.0-20240312041847-bd984b5ce465 h1:KwWnWVWCNtNq/ewIX7HIKnELmEx2nDP42yskD/pi7QE=
@@ -20,3 +26,5 @@ github.com/spf13/afero v1.11.0 h1:WJQKhtpdm3v2IzqG8VMqrr6Rf3UYpEF239Jy9wNepM8=
 github.com/spf13/afero v1.11.0/go.mod h1:GH9Y3pIexgf1MTIWtNGyogA5MwRIDXGUr+hbWNoBjkY=
 golang.org/x/text v0.15.0 h1:h1V/4gjBv8v9cjcR6+AR5+/cIYK5N/WAgiv4xlsEtAk=
 golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
+golang.org/x/text v0.16.0 h1:a94ExnEXNtEwYLGJSIUxnWoxoRz/ZcCsV63ROupILh4=
+golang.org/x/text v0.16.0/go.mod h1:GhwF1Be+LQoKShO3cGOHzqOgRrGaYc9AvblQOmPVHnI=
diff --git a/main.go b/main.go
index 9164e16..74259b7 100644
--- a/main.go
+++ b/main.go
@@ -7,8 +7,8 @@ import (
 	"os/signal"
 	"syscall"
 
-	"tuxpa.in/a/pprofweb/cli"
 	"github.com/alecthomas/kong"
+	"tuxpa.in/a/pprofweb/cli"
 )
 
 func main() {
diff --git a/flagset/flags.go b/pkg/flagset/flags.go
similarity index 100%
rename from flagset/flags.go
rename to pkg/flagset/flags.go
diff --git a/pprofweb/page.go b/pkg/pprofweb/page.go
similarity index 100%
rename from pprofweb/page.go
rename to pkg/pprofweb/page.go
diff --git a/pprofweb/pprofweb.go b/pkg/pprofweb/pprofweb.go
similarity index 99%
rename from pprofweb/pprofweb.go
rename to pkg/pprofweb/pprofweb.go
index 0b9f524..f34c35e 100644
--- a/pprofweb/pprofweb.go
+++ b/pkg/pprofweb/pprofweb.go
@@ -14,11 +14,11 @@ import (
 	"time"
 
 	"gfx.cafe/util/go/generic"
-	"tuxpa.in/a/pprofweb/flagset"
 	"github.com/go-chi/chi/v5"
 	"github.com/google/pprof/driver"
 	"github.com/rs/xid"
 	"github.com/spf13/afero"
+	"tuxpa.in/a/pprofweb/pkg/flagset"
 )
 
 type Config struct {
diff --git a/webserver/pprofweb.go b/pkg/webserver/pprofweb.go
similarity index 95%
rename from webserver/pprofweb.go
rename to pkg/webserver/pprofweb.go
index 2fce54a..9e8a63f 100644
--- a/webserver/pprofweb.go
+++ b/pkg/webserver/pprofweb.go
@@ -5,10 +5,10 @@ import (
 	"net/http"
 	"os"
 
-	"tuxpa.in/a/pprofweb/pprofweb"
 	"github.com/go-chi/chi/v5"
 	"github.com/go-chi/chi/v5/middleware"
 	"github.com/spf13/afero"
+	"tuxpa.in/a/pprofweb/pkg/pprofweb"
 )
 
 func main() {