diff --git a/go.sum b/go.sum
index b5d9357c..533fdb81 100644
--- a/go.sum
+++ b/go.sum
@@ -119,9 +119,7 @@ github.com/anacrolix/log v0.3.0/go.mod h1:lWvLTqzAnCWPJA08T2HCstZi0L1y2Wyvm3FJgw
 github.com/anacrolix/missinggo v1.1.2-0.20190815015349-b888af804467/go.mod h1:MBJu3Sk/k3ZfGYcS7z18gwfu72Ey/xopPFJJbTi5yIo=
 github.com/anacrolix/missinggo v1.2.1 h1:0IE3TqX5y5D0IxeMwTyIgqdDew4QrzcXaaEnJQyjHvw=
 github.com/anacrolix/missinggo v1.2.1/go.mod h1:J5cMhif8jPmFoC3+Uvob3OXXNIhOUikzMt+uUjeM21Y=
-github.com/anacrolix/missinggo/perf v1.0.0 h1:7ZOGYziGEBytW49+KmYGTaNfnwUqP1HBsy6BqESAJVw=
 github.com/anacrolix/missinggo/perf v1.0.0/go.mod h1:ljAFWkBuzkO12MQclXzZrosP5urunoLS0Cbvb4V0uMQ=
-github.com/anacrolix/sync v0.2.0 h1:oRe22/ZB+v7v/5Mbc4d2zE0AXEZy0trKyKLjqYOt6tY=
 github.com/anacrolix/sync v0.2.0/go.mod h1:BbecHL6jDSExojhNtgTFSBcdGerzNc64tz3DCOj/I0g=
 github.com/anacrolix/tagflag v0.0.0-20180109131632-2146c8d41bf0/go.mod h1:1m2U/K6ZT+JZG0+bdMK6qauP49QT4wE5pmhJXOKKCHw=
 github.com/anacrolix/utp v0.1.0/go.mod h1:MDwc+vsGEq7RMw6lr2GKOEqjWny5hO5OZXRVNaBJ2Dk=
@@ -1192,8 +1190,8 @@ github.com/neilalexander/nats-server/v2 v2.3.3-0.20210714094623-648cf26af922/go.
 github.com/neilalexander/nats.go v1.11.1-0.20210715085246-cd5b4d5a89fe h1:0lmDLHkYtQOyRpX8CkB3h6aQ71soPvoUD/A/7WmkuLw=
 github.com/neilalexander/nats.go v1.11.1-0.20210715085246-cd5b4d5a89fe/go.mod h1:BPko4oXsySz4aSWeFgOHLZs3G4Jq4ZAyE6/zMCxRT6w=
 github.com/neilalexander/utp v0.1.1-0.20210622132614-ee9a34a30488/go.mod h1:NPHGhPc0/wudcaCqL/H5AOddkRf8GPRhzOujuUKGQu8=
-github.com/neilalexander/utp v0.1.1-0.20210705212447-691f29ad692b h1:XNm+Ks3bVziRJxcMaIbzumWEw7l52z9Rek6cMHgln1g=
-github.com/neilalexander/utp v0.1.1-0.20210705212447-691f29ad692b/go.mod h1:ylsx0342RjGHjOoVKhR/wz/7Lhiusonihfj4QLxEMcU=
+github.com/neilalexander/utp v0.1.1-0.20210720104546-52626cdf31b2 h1:txJOiDxsypF8RbzbcyOD3ovip+uUWNZE/Zo7qLdARZQ=
+github.com/neilalexander/utp v0.1.1-0.20210720104546-52626cdf31b2/go.mod h1:NPHGhPc0/wudcaCqL/H5AOddkRf8GPRhzOujuUKGQu8=
 github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 h1:zYyBkD/k9seD2A7fsi6Oo2LfFZAehjjQMERAvZLEDnQ=
 github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646/go.mod h1:jpp1/29i3P1S/RLdc7JQKbRpFeM1dOBd8T9ki5s+AY8=
 github.com/ngrok/sqlmw v0.0.0-20200129213757-d5c93a81bec6 h1:evlcQnJY+v8XRRchV3hXzpHDl6GcEZeLXAhlH9Csdww=