diff --git a/go.mod b/go.mod
index 8ab6878..fc370d5 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.22.4
 require (
 	fortio.org/assert v1.2.1
 	fortio.org/fortio v1.66.0
-	fortio.org/log v1.14.0
+	fortio.org/log v1.15.0
 	fortio.org/scli v1.15.1
 	github.com/prometheus/client_golang v1.19.1
 	golang.org/x/time v0.5.0
@@ -21,6 +21,7 @@ require (
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/fsnotify/fsnotify v1.7.0 // indirect
 	github.com/google/uuid v1.6.0 // indirect
+	github.com/kortschak/goroutine v1.1.2 // indirect
 	github.com/prometheus/client_model v0.5.0 // indirect
 	github.com/prometheus/common v0.48.0 // indirect
 	github.com/prometheus/procfs v0.12.0 // indirect
diff --git a/go.sum b/go.sum
index cb44132..4dd86b9 100644
--- a/go.sum
+++ b/go.sum
@@ -6,8 +6,8 @@ fortio.org/dflag v1.7.2 h1:lUhXFvDlw4CJj/q7hPv/TC+n/wVoQylzQO6bUg5GQa0=
 fortio.org/dflag v1.7.2/go.mod h1:6yO/NIgrWfQH195WbHJ3Y45SCx11ffivQjfx2C/FS1U=
 fortio.org/fortio v1.66.0 h1:9F/200qIu136z847bxs/NeAoYdJaQlVofYlppi3qwcw=
 fortio.org/fortio v1.66.0/go.mod h1:eUl5MRscw6CiWAStai8aB3/8unxA9uNzJRXdhKEaq1s=
-fortio.org/log v1.14.0 h1:ZkIc3Qqwfs9Dd931k07YzoC+bqCpJKEjVlZwxgXW3Nw=
-fortio.org/log v1.14.0/go.mod h1:1tnXMqd5rZAgvSeHJkD2xXpyXRBzdeXtKLZuzNLIwtA=
+fortio.org/log v1.15.0 h1:DRbZzgZH4av3ZPz6yIcvBwMy4NLH8a5iznRXXEegvJQ=
+fortio.org/log v1.15.0/go.mod h1:t58Spg9njjymvRioh5F6qKGSupEsnMjXLGWIS1i3khE=
 fortio.org/scli v1.15.1 h1:Upza50brpEZwUk8Nn2gdP4BjgqJZY3J+z7KLrrAzPjY=
 fortio.org/scli v1.15.1/go.mod h1:9LOD4iPe9u73KeJGYC/Af1oFniOafO7oZ9VvwENMf/c=
 fortio.org/sets v1.1.1 h1:Q7Z1Ft2lpUc1N7bfI8HofIK0QskrOflfYRyKT2LzBng=
@@ -28,6 +28,8 @@ github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/kortschak/goroutine v1.1.2 h1:lhllcCuERxMIK5cYr8yohZZScL1na+JM5JYPRclWjck=
+github.com/kortschak/goroutine v1.1.2/go.mod h1:zKpXs1FWN/6mXasDQzfl7g0LrGFIOiA6cLs9eXKyaMY=
 github.com/prometheus/client_golang v1.19.1 h1:wZWJDwK+NameRJuPGDhlnFgx8e8HN3XHQeLaYJFJBOE=
 github.com/prometheus/client_golang v1.19.1/go.mod h1:mP78NwGzrVks5S2H6ab8+ZZGJLZUq1hoULYBAYBw1Ho=
 github.com/prometheus/client_model v0.5.0 h1:VQw1hfvPvk3Uv6Qf29VrPF32JB6rtbgI6cYPYQjL0Qw=