diff --git a/go.mod b/go.mod
index eabe1780..2311026d 100644
--- a/go.mod
+++ b/go.mod
@@ -10,7 +10,7 @@ require (
 	github.com/hodgesds/perf-utils v0.4.0
 	github.com/illumos/go-kstat v0.0.0-20210513183136-173c9b0a9973
 	github.com/jsimonetti/rtnetlink v0.0.0-20211022192332-93da33804786
-	github.com/lufia/iostat v1.2.0
+	github.com/lufia/iostat v1.2.1
 	github.com/mattn/go-xmlrpc v0.0.3
 	github.com/mdlayher/wifi v0.0.0-20200527114002-84f0b9457fdd
 	github.com/prometheus/client_golang v1.11.0
diff --git a/go.sum b/go.sum
index 84ae5c12..0c47623a 100644
--- a/go.sum
+++ b/go.sum
@@ -181,8 +181,8 @@ github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfn
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
-github.com/lufia/iostat v1.2.0 h1:Botv3++V0FnQyhRlSt82DHUBv7XlxFtaNInpLq1jrAU=
-github.com/lufia/iostat v1.2.0/go.mod h1:rEPNA0xXgjHQjuI5Cy05sLlS2oRcSlWHRLrvh/AQ+Pg=
+github.com/lufia/iostat v1.2.1 h1:tnCdZBIglgxD47RyD55kfWQcJMGzO+1QBziSQfesf2k=
+github.com/lufia/iostat v1.2.1/go.mod h1:rEPNA0xXgjHQjuI5Cy05sLlS2oRcSlWHRLrvh/AQ+Pg=
 github.com/mattn/go-xmlrpc v0.0.3 h1:Y6WEMLEsqs3RviBrAa1/7qmbGB7DVD3brZIbqMbQdGY=
 github.com/mattn/go-xmlrpc v0.0.3/go.mod h1:mqc2dz7tP5x5BKlCahN/n+hs7OSZKJkS9JsHNBRlrxA=
 github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=