diff --git a/go.mod b/go.mod
index 2609ca9a..ddc01847 100644
--- a/go.mod
+++ b/go.mod
@@ -16,7 +16,7 @@ require (
 	github.com/anacrolix/missinggo/perf v1.0.0
 	github.com/anacrolix/missinggo/v2 v2.5.2
 	github.com/anacrolix/multiless v0.2.0
-	github.com/anacrolix/squirrel v0.2.1-0.20211119092713-2efaee06d169
+	github.com/anacrolix/squirrel v0.4.0
 	github.com/anacrolix/sync v0.4.0
 	github.com/anacrolix/tagflag v1.3.0
 	github.com/anacrolix/upnp v0.1.2-0.20200416075019-5e9378ed1425
diff --git a/go.sum b/go.sum
index 9f627a7d..7bbf1057 100644
--- a/go.sum
+++ b/go.sum
@@ -168,8 +168,8 @@ github.com/anacrolix/multiless v0.2.0/go.mod h1:TrCLEZfIDbMVfLoQt5tOoiBS/uq4y8+o
 github.com/anacrolix/publicip v0.2.0/go.mod h1:67G1lVkLo8UjdEcJkwScWVTvlJ35OCDsRJoWXl/wi4g=
 github.com/anacrolix/squirrel v0.1.0/go.mod h1:YzgVvikMdFD441oTWlNG189bpKabO9Sbf3uCSVgca04=
 github.com/anacrolix/squirrel v0.1.1-0.20210914065657-81bc5ecdc43a/go.mod h1:YzgVvikMdFD441oTWlNG189bpKabO9Sbf3uCSVgca04=
-github.com/anacrolix/squirrel v0.2.1-0.20211119092713-2efaee06d169 h1:OFAU76N1th2tW6EGi/FvT7EYP+xcpgN9ZqA8/rE09/0=
-github.com/anacrolix/squirrel v0.2.1-0.20211119092713-2efaee06d169/go.mod h1:dJyE7VefQvX0KAKMkOQDGOVEs91a+LvXQ2BjEKl/DIw=
+github.com/anacrolix/squirrel v0.4.0 h1:MOxYwh0mD2rcEJT+N2tFj2Z3dBDrWn6kRxP4qsBxfyk=
+github.com/anacrolix/squirrel v0.4.0/go.mod h1:dJyE7VefQvX0KAKMkOQDGOVEs91a+LvXQ2BjEKl/DIw=
 github.com/anacrolix/stm v0.1.0/go.mod h1:ZKz7e7ERWvP0KgL7WXfRjBXHNRhlVRlbBQecqFtPq+A=
 github.com/anacrolix/stm v0.1.1-0.20191106051447-e749ba3531cf/go.mod h1:zoVQRvSiGjGoTmbM0vSLIiaKjWtNPeTvXUSdJQA4hsg=
 github.com/anacrolix/stm v0.2.0/go.mod h1:zoVQRvSiGjGoTmbM0vSLIiaKjWtNPeTvXUSdJQA4hsg=