diff --git a/go.mod b/go.mod
index 90fd447..c5c9963 100644
--- a/go.mod
+++ b/go.mod
@@ -25,7 +25,7 @@ require (
 	github.com/xtaci/smux v1.5.35
 	gitlab.torproject.org/tpo/anti-censorship/geoip v0.0.0-20210928150955-7ce4b3d98d01
 	gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/goptlib v1.6.0
-	gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/ptutil v0.0.0-20250130151315-efaf4e0ec0d3
+	gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/ptutil v0.0.0-20250815012447-418f76dcf315
 	golang.org/x/crypto v0.36.0
 	golang.org/x/net v0.38.0
 	golang.org/x/sys v0.35.0
diff --git a/go.sum b/go.sum
index 140454f..99391e5 100644
--- a/go.sum
+++ b/go.sum
@@ -176,6 +176,8 @@ gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/goptlib v1.6.0 h1
 gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/goptlib v1.6.0/go.mod h1:70bhd4JKW/+1HLfm+TMrgHJsUHG4coelMWwiVEJ2gAg=
 gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/ptutil v0.0.0-20250130151315-efaf4e0ec0d3 h1:pwWCiqrB6b3SynILsv3M+76utmcgMiTZ2aqfccjWmxo=
 gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/ptutil v0.0.0-20250130151315-efaf4e0ec0d3/go.mod h1:PK7EvweKeypdelDyh1m7N922aldSeCAG8n0lJ7RAXWQ=
+gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/ptutil v0.0.0-20250815012447-418f76dcf315 h1:9lmXguW9aH5sdZR5h5jOrdInCt0tQ9NRa7+wFD4MQBk=
+gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/ptutil v0.0.0-20250815012447-418f76dcf315/go.mod h1:PK7EvweKeypdelDyh1m7N922aldSeCAG8n0lJ7RAXWQ=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=