diff --git a/.env.sample b/.env.sample
index afc3dff..20d8c5c 100644
--- a/.env.sample
+++ b/.env.sample
@@ -5,7 +5,7 @@ PORT=8080
 DB_DIR="/db/rsslay.sqlite"
 DEFAULT_PROFILE_PICTURE_URL="https://i.imgur.com/MaceU96.png"
 SECRET="CHANGE_ME"
-VERSION=0.5.3
+VERSION=0.5.4
 REPLAY_TO_RELAYS=false
 RELAYS_TO_PUBLISH_TO=""
 NITTER_INSTANCES=""
diff --git a/.github/workflows/goreleaser-snapshot.yml b/.github/workflows/goreleaser-snapshot.yml
index b736293..9580d54 100644
--- a/.github/workflows/goreleaser-snapshot.yml
+++ b/.github/workflows/goreleaser-snapshot.yml
@@ -18,7 +18,7 @@ jobs:
       - run: git fetch --force --tags
       - uses: actions/setup-go@v4
         with:
-          go-version: '>=1.20.0'
+          go-version: '>=1.21.0'
           cache: true
       - uses: goreleaser/goreleaser-action@v4
         with:
diff --git a/.github/workflows/goreleaser.yml b/.github/workflows/goreleaser.yml
index e5f6be0..02d5836 100644
--- a/.github/workflows/goreleaser.yml
+++ b/.github/workflows/goreleaser.yml
@@ -21,7 +21,7 @@ jobs:
       - run: git fetch --force --tags
       - uses: actions/setup-go@v4
         with:
-          go-version: '>=1.20.0'
+          go-version: '>=1.21.0'
           cache: true
       - uses: goreleaser/goreleaser-action@v4
         with:
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index f4ba277..d853aa5 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -16,7 +16,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v4
         with:
-          go-version: 1.20.0
+          go-version: 1.21.0
 
       - name: Build
         run: go build -v ./...
diff --git a/Dockerfile b/Dockerfile
index 2750f56..06a1462 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20-alpine as build
+FROM golang:1.21-alpine as build
 
 WORKDIR /app
 
@@ -28,7 +28,7 @@ ENV PORT="8080"
 ENV DB_DIR="/db/rsslay.sqlite"
 ENV DEFAULT_PROFILE_PICTURE_URL="https://i.imgur.com/MaceU96.png"
 ENV SECRET="CHANGE_ME"
-ENV VERSION=0.5.3
+ENV VERSION=0.5.4
 ENV REPLAY_TO_RELAYS=false
 ENV RELAYS_TO_PUBLISH_TO=""
 ENV NITTER_INSTANCES=""
diff --git a/Dockerfile.fly b/Dockerfile.fly
index e025f64..d2f320e 100644
--- a/Dockerfile.fly
+++ b/Dockerfile.fly
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 FROM flyio/litefs:0.4 AS litefs
-FROM golang:1.20-alpine as build
+FROM golang:1.21-alpine as build
 
 WORKDIR /app
 
@@ -30,7 +30,7 @@ ENV PORT="8080"
 ENV DB_DIR="/db/rsslay.sqlite"
 ENV DEFAULT_PROFILE_PICTURE_URL="https://i.imgur.com/MaceU96.png"
 ENV SECRET="CHANGE_ME"
-ENV VERSION=0.5.3
+ENV VERSION=0.5.4
 ENV REPLAY_TO_RELAYS=false
 ENV RELAYS_TO_PUBLISH_TO=""
 ENV NITTER_INSTANCES=""
diff --git a/Dockerfile.railwayapp b/Dockerfile.railwayapp
index f0f0872..d62b93f 100644
--- a/Dockerfile.railwayapp
+++ b/Dockerfile.railwayapp
@@ -1,4 +1,4 @@
-FROM golang:1.20-alpine as build
+FROM golang:1.21-alpine as build
 
 ARG PORT
 ARG DB_DIR
@@ -69,7 +69,7 @@ ENV PORT=$PORT
 ENV DB_DIR=$DB_DIR
 ENV DEFAULT_PROFILE_PICTURE_URL=$DEFAULT_PROFILE_PICTURE_URL
 ENV SECRET=$SECRET
-ENV VERSION=0.5.3
+ENV VERSION=0.5.4
 ENV REPLAY_TO_RELAYS=false
 ENV RELAYS_TO_PUBLISH_TO=""
 ENV NITTER_INSTANCES=""
diff --git a/fly.toml b/fly.toml
index c64b7b0..a2a2d23 100644
--- a/fly.toml
+++ b/fly.toml
@@ -29,7 +29,7 @@ kill_timeout = 5
   PORT = "8080"
   RELAYS_TO_PUBLISH_TO = ""
   REPLAY_TO_RELAYS = "false"
-  VERSION = "0.5.3"
+  VERSION = "0.5.4"
 
 [[mounts]]
   source = "rsslay_data_machines"
diff --git a/go.mod b/go.mod
index 7c38585..210719e 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/piraces/rsslay
 
-go 1.20
+go 1.21
 
 require (
 	github.com/DATA-DOG/go-sqlmock v1.5.0
@@ -21,7 +21,7 @@ require (
 	github.com/prometheus/client_golang v1.16.0
 	github.com/redis/go-redis/v9 v9.0.5
 	github.com/stretchr/testify v1.8.4
-	golang.org/x/exp v0.0.0-20230315142452-642cacee5cc0
+	golang.org/x/exp v0.0.0-20230809150735-7b3493d9a819
 )
 
 require (
diff --git a/go.sum b/go.sum
index d84ca4b..2565b65 100644
--- a/go.sum
+++ b/go.sum
@@ -207,6 +207,8 @@ golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPh
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/exp v0.0.0-20230315142452-642cacee5cc0 h1:pVgRXcIictcr+lBQIFeiwuwtDIs4eL21OuM9nyAADmo=
 golang.org/x/exp v0.0.0-20230315142452-642cacee5cc0/go.mod h1:CxIveKay+FTh1D0yPZemJVgC/95VzuuOLq5Qi4xnoYc=
+golang.org/x/exp v0.0.0-20230809150735-7b3493d9a819 h1:EDuYyU/MkFXllv9QF9819VlI9a4tzGuCbhG0ExK9o1U=
+golang.org/x/exp v0.0.0-20230809150735-7b3493d9a819/go.mod h1:FXUEEKJgO7OQYeo8N01OfiKP8RXMtf6e8aTskBGqWdc=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
diff --git a/pkg/feed/feed.go b/pkg/feed/feed.go
index 40619a7..aa860da 100644
--- a/pkg/feed/feed.go
+++ b/pkg/feed/feed.go
@@ -21,6 +21,7 @@ import (
 	"html"
 	"log"
 	"net/http"
+	"net/url"
 	"strings"
 	"time"
 )
@@ -178,7 +179,7 @@ func EntryFeedToSetMetadata(pubkey string, feed *gofeed.Feed, originalUrl string
 		PubKey:    pubkey,
 		CreatedAt: nostr.Timestamp(createdAt.Unix()),
 		Kind:      nostr.KindSetMetadata,
-		Tags:      nostr.Tags{},
+		Tags:      nostr.Tags{[]string{"proxy", feed.FeedLink, "rss"}},
 		Content:   string(content),
 	}
 	evt.ID = string(evt.Serialize())
@@ -266,11 +267,16 @@ func ItemToTextNote(pubkey string, item *gofeed.Item, feed *gofeed.Feed, default
 		createdAt = *item.PublishedParsed
 	}
 
+	composedProxyLink := feed.FeedLink
+	if item.GUID != "" {
+		composedProxyLink += fmt.Sprintf("#%s", url.QueryEscape(item.GUID))
+	}
+
 	evt := nostr.Event{
 		PubKey:    pubkey,
 		CreatedAt: nostr.Timestamp(createdAt.Unix()),
 		Kind:      nostr.KindTextNote,
-		Tags:      nostr.Tags{},
+		Tags:      nostr.Tags{[]string{"proxy", composedProxyLink, "rss"}},
 		Content:   strings.ToValidUTF8(content, ""),
 	}
 	evt.ID = string(evt.Serialize())
diff --git a/pkg/feed/feed_test.go b/pkg/feed/feed_test.go
index 366030d..18b16f0 100644
--- a/pkg/feed/feed_test.go
+++ b/pkg/feed/feed_test.go
@@ -296,7 +296,7 @@ func TestItemToTextNote(t *testing.T) {
 		assert.Equal(t, 1, event.Kind)
 		assert.Equal(t, tc.expectedContent, event.Content)
 		assert.Empty(t, event.Sig)
-		assert.Empty(t, event.Tags)
+		assert.NotEmpty(t, event.Tags)
 	}
 }