diff --git a/go.mod b/go.mod
index 9738813..780a46d 100644
--- a/go.mod
+++ b/go.mod
@@ -25,7 +25,7 @@ require (
 	github.com/xtaci/smux v1.5.33
 	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 v0.0.0-20250129175826-48a566259500
+	gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/ptutil v0.0.0-20250130151315-efaf4e0ec0d3
 	golang.org/x/crypto v0.33.0
 	golang.org/x/net v0.35.0
 	golang.org/x/sys v0.30.0
diff --git a/go.sum b/go.sum
index 6b35c93..3ada462 100644
--- a/go.sum
+++ b/go.sum
@@ -174,8 +174,8 @@ gitlab.torproject.org/tpo/anti-censorship/geoip v0.0.0-20210928150955-7ce4b3d98d
 gitlab.torproject.org/tpo/anti-censorship/geoip v0.0.0-20210928150955-7ce4b3d98d01/go.mod h1:K3LOI4H8fa6j+7E10ViHeGEQV10304FG4j94ypmKLjY=
 gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/goptlib v1.6.0 h1:KD9m+mRBwtEdqe94Sv72uiedMWeRdIr4sXbrRyzRiIo=
 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 v0.0.0-20250129175826-48a566259500 h1:lt8iyIWtJGIF2uOiPtcbhqNOmnrVmi+x04jNwudqPBA=
-gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/ptutil v0.0.0-20250129175826-48a566259500/go.mod h1:PK7EvweKeypdelDyh1m7N922aldSeCAG8n0lJ7RAXWQ=
+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=
 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=