diff --git a/go.mod b/go.mod
index ee654d7..22b4b3a 100644
--- a/go.mod
+++ b/go.mod
@@ -4,5 +4,5 @@ go 1.16
 
 require (
 	github.com/mdigger/epub3 v0.0.0-20210516184919-bf3b8ea2a0c2
-	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b
+	gopkg.in/yaml.v3 v3.0.0
 )
diff --git a/go.sum b/go.sum
index d24b6a7..eda91a3 100644
--- a/go.sum
+++ b/go.sum
@@ -1,8 +1,6 @@
-github.com/mdigger/epub3 v0.0.0-20210514132543-143020ab525e h1:aLpV5uJYdie0u/Tglqz6PbbwC1vKbT8pXDsDf1+6hQI=
-github.com/mdigger/epub3 v0.0.0-20210514132543-143020ab525e/go.mod h1:oHCbAJ85moftx6J/nRd7Qxe7smg2pIBQgZ71Tq+z+/4=
 github.com/mdigger/epub3 v0.0.0-20210516184919-bf3b8ea2a0c2 h1:XK8TEWhHcmMU9Z8wiXCtApUn9YpOpqebnQD5uFMi6xc=
 github.com/mdigger/epub3 v0.0.0-20210516184919-bf3b8ea2a0c2/go.mod h1:oHCbAJ85moftx6J/nRd7Qxe7smg2pIBQgZ71Tq+z+/4=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0 h1:hjy8E9ON/egN1tAYqKb61G10WtihqetD4sz2H+8nIeA=
+gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=