diff --git a/Dockerfile b/Dockerfile
index 1139b27..6eaf5b1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20-bullseye as build
+FROM golang:1.21-bullseye as build
 
 WORKDIR /go/src/cassette
 
diff --git a/go.mod b/go.mod
index 1226db7..d15510c 100644
--- a/go.mod
+++ b/go.mod
@@ -8,8 +8,8 @@ require (
 	github.com/ipfs/boxo v0.11.0
 	github.com/ipfs/go-cid v0.4.1
 	github.com/ipfs/go-log/v2 v2.5.1
-	github.com/ipni/go-libipni v0.3.1
-	github.com/libp2p/go-libp2p v0.30.0
+	github.com/ipni/go-libipni v0.5.2
+	github.com/libp2p/go-libp2p v0.31.0
 	github.com/libp2p/go-libp2p-kad-dht v0.23.0
 	github.com/mercari/go-circuitbreaker v0.0.2
 	github.com/multiformats/go-multiaddr v0.11.0
@@ -55,7 +55,7 @@ require (
 	github.com/ipfs/go-datastore v0.6.0 // indirect
 	github.com/ipfs/go-ipfs-util v0.0.2 // indirect
 	github.com/ipfs/go-log v1.0.5 // indirect
-	github.com/ipld/go-ipld-prime v0.20.0 // indirect
+	github.com/ipld/go-ipld-prime v0.21.0 // indirect
 	github.com/jackpal/go-nat-pmp v1.0.2 // indirect
 	github.com/jbenet/go-temp-err-catcher v0.1.0 // indirect
 	github.com/jbenet/goprocess v0.1.4 // indirect
@@ -97,8 +97,8 @@ require (
 	github.com/prometheus/common v0.44.0 // indirect
 	github.com/prometheus/procfs v0.11.1 // indirect
 	github.com/quic-go/qpack v0.4.0 // indirect
-	github.com/quic-go/qtls-go1-20 v0.3.2 // indirect
-	github.com/quic-go/quic-go v0.38.0 // indirect
+	github.com/quic-go/qtls-go1-20 v0.3.3 // indirect
+	github.com/quic-go/quic-go v0.38.1 // indirect
 	github.com/quic-go/webtransport-go v0.5.3 // indirect
 	github.com/raulk/go-watchdog v1.3.0 // indirect
 	github.com/spaolacci/murmur3 v1.1.0 // indirect
diff --git a/go.sum b/go.sum
index dee8c46..8d9c3b2 100644
--- a/go.sum
+++ b/go.sum
@@ -59,7 +59,7 @@ github.com/flynn/noise v1.0.0 h1:DlTHqmzmvcEiKj+4RYo/imoswx/4r6iBlCMfVtrMXpQ=
 github.com/flynn/noise v1.0.0/go.mod h1:xbMo+0i6+IGbYdJhF31t2eR1BIU0CYc12+BNAKwUTag=
 github.com/francoispqt/gojay v1.2.13 h1:d2m3sFjloqoIUQU3TsHBgj6qg/BVGlTBeHDUmyJnXKk=
 github.com/francoispqt/gojay v1.2.13/go.mod h1:ehT5mTG4ua4581f1++1WLG0vPdaA9HaiDsoyrBGkyDY=
-github.com/frankban/quicktest v1.14.4 h1:g2rn0vABPOOXmZUj+vbmUp0lPoXEMuhTpIluN0XL9UY=
+github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/gliderlabs/ssh v0.1.1/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0=
@@ -161,10 +161,10 @@ github.com/ipfs/go-log v1.0.5/go.mod h1:j0b8ZoR+7+R99LD9jZ6+AJsrzkPbSXbZfGakb5JP
 github.com/ipfs/go-log/v2 v2.1.3/go.mod h1:/8d0SH3Su5Ooc31QlL1WysJhvyOTDCjcCZ9Axpmri6g=
 github.com/ipfs/go-log/v2 v2.5.1 h1:1XdUzF7048prq4aBjDQQ4SL5RxftpRGdXhNRwKSAlcY=
 github.com/ipfs/go-log/v2 v2.5.1/go.mod h1:prSpmC1Gpllc9UYWxDiZDreBYw7zp4Iqp1kOLU9U5UI=
-github.com/ipld/go-ipld-prime v0.20.0 h1:Ud3VwE9ClxpO2LkCYP7vWPc0Fo+dYdYzgxUJZ3uRG4g=
-github.com/ipld/go-ipld-prime v0.20.0/go.mod h1:PzqZ/ZR981eKbgdr3y2DJYeD/8bgMawdGVlJDE8kK+M=
-github.com/ipni/go-libipni v0.3.1 h1:zCq9UXrvVL4NAxyumPGHboUAGraNfmkDC16BAoQGrww=
-github.com/ipni/go-libipni v0.3.1/go.mod h1:2zyo+mgV+E1T0n6eGmef7+uEt0awOpIhqONfz9ZPtNo=
+github.com/ipld/go-ipld-prime v0.21.0 h1:n4JmcpOlPDIxBcY037SVfpd1G+Sj1nKZah0m6QH9C2E=
+github.com/ipld/go-ipld-prime v0.21.0/go.mod h1:3RLqy//ERg/y5oShXXdx5YIp50cFGOanyMctpPjsvxQ=
+github.com/ipni/go-libipni v0.5.2 h1:9vaYOnR4dskd8p88NOboqI6yVqBwYPNCQ/zOaRSr59I=
+github.com/ipni/go-libipni v0.5.2/go.mod h1:UnrhEqjVI2Z2HXlaieOBONJmtW557nZkYpB4IIsMD+s=
 github.com/jackpal/go-nat-pmp v1.0.2 h1:KzKSgb7qkJvOUTqYl9/Hg/me3pWgBmERKrTGD7BdWus=
 github.com/jackpal/go-nat-pmp v1.0.2/go.mod h1:QPH045xvCAeXUZOxsnwmrtiCoxIr9eob+4orBN1SBKc=
 github.com/jbenet/go-cienv v0.1.0/go.mod h1:TqNnHUmJgXau0nCzC7kXWeotg3J9W34CUv5Djy1+FlA=
@@ -199,8 +199,8 @@ github.com/libp2p/go-cidranger v1.1.0 h1:ewPN8EZ0dd1LSnrtuwd4709PXVcITVeuwbag38y
 github.com/libp2p/go-cidranger v1.1.0/go.mod h1:KWZTfSr+r9qEo9OkI9/SIEeAtw+NNoU0dXIXt15Okic=
 github.com/libp2p/go-flow-metrics v0.1.0 h1:0iPhMI8PskQwzh57jB9WxIuIOQ0r+15PChFGkx3Q3WM=
 github.com/libp2p/go-flow-metrics v0.1.0/go.mod h1:4Xi8MX8wj5aWNDAZttg6UPmc0ZrnFNsMtpsYUClFtro=
-github.com/libp2p/go-libp2p v0.30.0 h1:9EZwFtJPFBcs/yJTnP90TpN1hgrT/EsFfM+OZuwV87U=
-github.com/libp2p/go-libp2p v0.30.0/go.mod h1:nr2g5V7lfftwgiJ78/HrID+pwvayLyqKCEirT2Y3Byg=
+github.com/libp2p/go-libp2p v0.31.0 h1:LFShhP8F6xthWiBBq3euxbKjZsoRajVEyBS9snfHxYg=
+github.com/libp2p/go-libp2p v0.31.0/go.mod h1:W/FEK1c/t04PbRH3fA9i5oucu5YcgrG0JVoBWT1B7Eg=
 github.com/libp2p/go-libp2p-asn-util v0.3.0 h1:gMDcMyYiZKkocGXDQ5nsUQyquC9+H+iLEQHwOCZ7s8s=
 github.com/libp2p/go-libp2p-asn-util v0.3.0/go.mod h1:B1mcOrKUE35Xq/ASTmQ4tN3LNzVVaMNmq2NACuqyB9w=
 github.com/libp2p/go-libp2p-kad-dht v0.23.0 h1:sxE6LxLopp79eLeV695n7+c77V/Vn4AMF28AdM/XFqM=
@@ -313,10 +313,10 @@ github.com/prometheus/procfs v0.11.1 h1:xRC8Iq1yyca5ypa9n1EZnWZkt7dwcoRPQwX/5gwa
 github.com/prometheus/procfs v0.11.1/go.mod h1:eesXgaPo1q7lBpVMoMy0ZOFTth9hBn4W/y0/p/ScXhY=
 github.com/quic-go/qpack v0.4.0 h1:Cr9BXA1sQS2SmDUWjSofMPNKmvF6IiIfDRmgU0w1ZCo=
 github.com/quic-go/qpack v0.4.0/go.mod h1:UZVnYIfi5GRk+zI9UMaCPsmZ2xKJP7XBUvVyT1Knj9A=
-github.com/quic-go/qtls-go1-20 v0.3.2 h1:rRgN3WfnKbyik4dBV8A6girlJVxGand/d+jVKbQq5GI=
-github.com/quic-go/qtls-go1-20 v0.3.2/go.mod h1:X9Nh97ZL80Z+bX/gUXMbipO6OxdiDi58b/fMC9mAL+k=
-github.com/quic-go/quic-go v0.38.0 h1:T45lASr5q/TrVwt+jrVccmqHhPL2XuSyoCLVCpfOSLc=
-github.com/quic-go/quic-go v0.38.0/go.mod h1:MPCuRq7KBK2hNcfKj/1iD1BGuN3eAYMeNxp3T42LRUg=
+github.com/quic-go/qtls-go1-20 v0.3.3 h1:17/glZSLI9P9fDAeyCHBFSWSqJcwx1byhLwP5eUIDCM=
+github.com/quic-go/qtls-go1-20 v0.3.3/go.mod h1:X9Nh97ZL80Z+bX/gUXMbipO6OxdiDi58b/fMC9mAL+k=
+github.com/quic-go/quic-go v0.38.1 h1:M36YWA5dEhEeT+slOu/SwMEucbYd0YFidxG3KlGPZaE=
+github.com/quic-go/quic-go v0.38.1/go.mod h1:ijnZM7JsFIkp4cRyjxJNIzdSfCLmUMg9wdyhGmg+SN4=
 github.com/quic-go/webtransport-go v0.5.3 h1:5XMlzemqB4qmOlgIus5zB45AcZ2kCgCy2EptUrfOPWU=
 github.com/quic-go/webtransport-go v0.5.3/go.mod h1:OhmmgJIzTTqXK5xvtuX0oBpLV2GkLWNDA+UeTGJXErU=
 github.com/raulk/go-watchdog v1.3.0 h1:oUmdlHxdkXRJlwfG0O9omj8ukerm8MEQavSiDTEtBsk=
diff --git a/server.go b/server.go
index cd78776..909ee55 100644
--- a/server.go
+++ b/server.go
@@ -36,7 +36,8 @@ func (c *Cassette) handleMh(w http.ResponseWriter, r *http.Request) {
 	case http.MethodOptions:
 		c.handleLookupOptions(w)
 	default:
-		http.Error(w, "", http.StatusNotFound)
+		w.Header().Set("Allow", http.MethodOptions)
+		http.Error(w, "", http.StatusMethodNotAllowed)
 	}
 }
 
@@ -71,7 +72,9 @@ func (c *Cassette) handleMhSubtree(w http.ResponseWriter, r *http.Request) {
 	case http.MethodOptions:
 		c.handleLookupOptions(w)
 	default:
-		http.Error(w, "", http.StatusNotFound)
+		w.Header().Set("Allow", http.MethodGet)
+		w.Header().Add("Allow", http.MethodOptions)
+		http.Error(w, "", http.StatusMethodNotAllowed)
 	}
 }
 
diff --git a/version.json b/version.json
index 81e3567..fd1e38a 100644
--- a/version.json
+++ b/version.json
@@ -1,3 +1,3 @@
 {
-  "version": "v0.0.1"
+  "version": "v0.0.2"
 }