diff --git a/go.mod b/go.mod
index de462a1..0a98363 100644
--- a/go.mod
+++ b/go.mod
@@ -8,7 +8,7 @@ toolchain go1.22.5
 require (
 	fortio.org/cli v1.9.0
 	fortio.org/dflag v1.7.2
-	fortio.org/fortio v1.66.4
+	fortio.org/fortio v1.66.5
 	fortio.org/log v1.16.0
 	go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace v0.55.0
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.55.0
@@ -24,7 +24,7 @@ require (
 // replace fortio.org/fortio => ../fortio
 
 require (
-	fortio.org/safecast v0.1.1 // indirect
+	fortio.org/safecast v1.0.0 // indirect
 	fortio.org/scli v1.15.2 // indirect
 	fortio.org/sets v1.2.0 // indirect
 	fortio.org/struct2env v0.4.1 // indirect
diff --git a/go.sum b/go.sum
index e95d416..4b15fe5 100644
--- a/go.sum
+++ b/go.sum
@@ -4,12 +4,12 @@ fortio.org/cli v1.9.0 h1:cPgNHvrjxznmbmwuXSwPqQLKZ+RMW8i0iAOESLjt1aI=
 fortio.org/cli v1.9.0/go.mod h1:pk/JBE8LcXtNuo5Yj2bLsVbwPaHo8NWdbstSN0cpbFk=
 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 v1.66.4 h1:u7TNsHaYISTR+InM1oAL3WC/iRTLsqq7FNc6aQNgMrw=
-fortio.org/fortio v1.66.4/go.mod h1:gpgXwNan/lXNuql7DY6qbEtrUa40iN6OMOAxmgRWU7w=
+fortio.org/fortio v1.66.5 h1:WTJzTGOA12YWZSM5g43602lH+GOsmP3eKHXLnuRW4vs=
+fortio.org/fortio v1.66.5/go.mod h1:gOaugOHVf8PU0R5CjXUPlFTZa81sdcZPErvWfLDI2ug=
 fortio.org/log v1.16.0 h1:GhU8/9NkYZmEIzvTN/DTMedDAStLJraWUUVUA2EbNDc=
 fortio.org/log v1.16.0/go.mod h1:t58Spg9njjymvRioh5F6qKGSupEsnMjXLGWIS1i3khE=
-fortio.org/safecast v0.1.1 h1:lKSckzBVCbeJXTNUiAvBdplYUafEHM9BahrP46WgPEQ=
-fortio.org/safecast v0.1.1/go.mod h1:xZmcPk3vi4kuUFf+tq4SvnlVdwViqf6ZSZl91Jr9Jdg=
+fortio.org/safecast v1.0.0 h1:dr3131WPX8iS1pTf76+39WeXbTrerDYLvi9s7Oi3wiY=
+fortio.org/safecast v1.0.0/go.mod h1:xZmcPk3vi4kuUFf+tq4SvnlVdwViqf6ZSZl91Jr9Jdg=
 fortio.org/scli v1.15.2 h1:vWXt4QOViXNWy4Gdm7d2FDfptzWD00QiWzYAM/IUF7c=
 fortio.org/scli v1.15.2/go.mod h1:XvY2JglgCeeZOIc5CrfBTtcsxkVV8xmGL5ykAcBjEHI=
 fortio.org/sets v1.2.0 h1:FBfC7R2xrOJtkcioUbY6WqEzdujuBoZRbSdp1fYF4Kk=