diff --git a/exporters/metric/cortex/utils/go.mod b/exporters/metric/cortex/utils/go.mod
index e32763c4eb1..9449c2cabf3 100644
--- a/exporters/metric/cortex/utils/go.mod
+++ b/exporters/metric/cortex/utils/go.mod
@@ -5,7 +5,7 @@ go 1.14
 replace go.opentelemetry.io/contrib/exporters/metric/cortex => ../
 
 require (
-	github.com/spf13/afero v1.3.5
+	github.com/spf13/afero v1.4.0
 	github.com/spf13/viper v1.7.1
 	github.com/stretchr/testify v1.6.1
 	go.opentelemetry.io/contrib/exporters/metric/cortex v0.11.0
diff --git a/exporters/metric/cortex/utils/go.sum b/exporters/metric/cortex/utils/go.sum
index 2579e8cf477..62f8a327032 100644
--- a/exporters/metric/cortex/utils/go.sum
+++ b/exporters/metric/cortex/utils/go.sum
@@ -187,8 +187,8 @@ github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9
 github.com/soheilhy/cmux v0.1.4/go.mod h1:IM3LyeVVIOuxMH7sFAkER9+bJ4dT7Ms6E4xg4kGIyLM=
 github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
-github.com/spf13/afero v1.3.5 h1:AWZ/w4lcfxuh52NVL78p9Eh8j6r1mCTEGSRFBJyIHAE=
-github.com/spf13/afero v1.3.5/go.mod h1:Ai8FlHk4v/PARR026UzYexafAt9roJ7LcLMAmO6Z93I=
+github.com/spf13/afero v1.4.0 h1:jsLTaI1zwYO3vjrzHalkVcIHXTNmdQFepW4OI8H3+x8=
+github.com/spf13/afero v1.4.0/go.mod h1:Ai8FlHk4v/PARR026UzYexafAt9roJ7LcLMAmO6Z93I=
 github.com/spf13/cast v1.3.0 h1:oget//CVOEoFewqQxwr0Ej5yjygnqGkvggSE/gB35Q8=
 github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
 github.com/spf13/jwalterweatherman v1.0.0 h1:XHEdyB+EcvlqZamSM4ZOMGlc93t6AcsBEu9Gc1vn7yk=