diff --git a/go.mod b/go.mod
index 28900e9..3e790d7 100644
--- a/go.mod
+++ b/go.mod
@@ -3,6 +3,7 @@ module github.com/emersion/go-msgauth
 go 1.12
 
 require (
-	github.com/emersion/go-milter v0.0.0-20190311184326-c3095a41a6fe
-	golang.org/x/crypto v0.0.0-20190411191339-88737f569e3a
+	github.com/emersion/go-message v0.13.0 // indirect
+	github.com/emersion/go-milter v0.3.0
+	golang.org/x/crypto v0.0.0-20201117144127-c1f2f97bffc9
 )
diff --git a/go.sum b/go.sum
index 12693da..a1adf28 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,23 @@
-github.com/emersion/go-milter v0.0.0-20190311184326-c3095a41a6fe h1:nIpzZ2zruw1MRdiDfUlG6avIuPSnTiiKA56qGPej750=
-github.com/emersion/go-milter v0.0.0-20190311184326-c3095a41a6fe/go.mod h1:aEaq7U51ARlk+2UeXTtdrDYeYWAUn/QjEwWzs7lD8OU=
-golang.org/x/crypto v0.0.0-20190411191339-88737f569e3a h1:Igim7XhdOpBnWPuYJ70XcNpq8q3BCACtVgNfoJxOV7g=
-golang.org/x/crypto v0.0.0-20190411191339-88737f569e3a/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE=
-golang.org/x/sys v0.0.0-20190403152447-81d4e9dc473e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/emersion/go-message v0.11.2 h1:oxO9SQ+3wgBAQRdk07eqfkCJ26Tl8ZHF7CcpGVoE00o=
+github.com/emersion/go-message v0.11.2/go.mod h1:C4jnca5HOTo4bGN9YdqNQM9sITuT3Y0K6bSUw9RklvY=
+github.com/emersion/go-message v0.13.0 h1:R4+CZv4Msxfk9tMaERjMkapdvdO2faWLuB5KHFsNLZE=
+github.com/emersion/go-message v0.13.0/go.mod h1:kYIioST9GDHte9/BRWgi93rpqbDuFftMjKSMaXS8ABo=
+github.com/emersion/go-milter v0.3.0 h1:A1C13tTpbSXjwUtEHlBc5cRyumdPJif46q22lHKS0Og=
+github.com/emersion/go-milter v0.3.0/go.mod h1:ablHK0pbLB83kMFBznp/Rj8aV+Kc3jw8cxzzmCNLIOY=
+github.com/emersion/go-textwrapper v0.0.0-20160606182133-d0e65e56babe/go.mod h1:aqO8z8wPrjkscevZJFVE1wXJrLpC5LtJG7fqLOsPb2U=
+github.com/martinlindhe/base36 v1.0.0/go.mod h1:+AtEs8xrBpCeYgSLoY/aJ6Wf37jtBuR0s35750M27+8=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20201117144127-c1f2f97bffc9 h1:phUcVbl53swtrUN8kQEXFhUxPlIlWyBfKmidCu7P95o=
+golang.org/x/crypto v0.0.0-20201117144127-c1f2f97bffc9/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=