diff --git a/go.mod b/go.mod
index 7fa4d5b3..dedc95fe 100644
--- a/go.mod
+++ b/go.mod
@@ -17,7 +17,7 @@ require (
 	github.com/stretchr/testify v1.4.0 // indirect
 	github.com/tidwall/buntdb v1.1.2
 	github.com/toorop/go-dkim v0.0.0-20200526084421-76378ae5207e
-	golang.org/x/crypto v0.0.0-20200709230013-948cd5f35899
+	golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a
 	golang.org/x/sys v0.0.0-20200724161237-0e2f3a69832c // indirect
 	golang.org/x/text v0.3.3
 	gopkg.in/yaml.v2 v2.3.0
diff --git a/go.sum b/go.sum
index 0ba8150a..a2608e7c 100644
--- a/go.sum
+++ b/go.sum
@@ -61,6 +61,8 @@ golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073 h1:xMPOj6Pz6UipU1wXLkrtqp
 golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200709230013-948cd5f35899 h1:DZhuSZLsGlFL4CmhA8BcRA0mnthyA/nZ00AqCUo7vHg=
 golang.org/x/crypto v0.0.0-20200709230013-948cd5f35899/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a h1:vclmkQCjlDX5OydZ9wv8rBCcS0QyQY66Mpf/7BZbInM=
+golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3 h1:0GoQqolDA55aaLxZyTzK/Y2ePZzZTUrRacwib7cNsYQ=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
diff --git a/vendor/golang.org/x/crypto/sha3/xor_unaligned.go b/vendor/golang.org/x/crypto/sha3/xor_unaligned.go
index 5ede2c61..5f19cdff 100644
--- a/vendor/golang.org/x/crypto/sha3/xor_unaligned.go
+++ b/vendor/golang.org/x/crypto/sha3/xor_unaligned.go
@@ -16,15 +16,6 @@ func (b *storageBuf) asBytes() *[maxRate]byte {
 	return (*[maxRate]byte)(unsafe.Pointer(b))
 }
 
-//go:nocheckptr
-//
-// xorInUnaligned intentionally reads the input buffer as an unaligned slice of
-// integers. The language spec is not clear on whether that is allowed.
-// See:
-// 	https://golang.org/issue/37644
-// 	https://golang.org/issue/37298
-// 	https://golang.org/issue/35381
-
 // xorInUnaligned uses unaligned reads and writes to update d.a to contain d.a
 // XOR buf.
 func xorInUnaligned(d *state, buf []byte) {
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 167da945..021f5d3a 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -52,7 +52,7 @@ github.com/tidwall/tinyqueue
 # github.com/toorop/go-dkim v0.0.0-20200526084421-76378ae5207e
 ## explicit
 github.com/toorop/go-dkim
-# golang.org/x/crypto v0.0.0-20200709230013-948cd5f35899
+# golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a
 ## explicit
 golang.org/x/crypto/bcrypt
 golang.org/x/crypto/blowfish