diff --git a/pkg/connector/capabilities.go b/pkg/connector/capabilities.go
index 4b8288f..855ff81 100644
--- a/pkg/connector/capabilities.go
+++ b/pkg/connector/capabilities.go
@@ -23,7 +23,11 @@ import (
 )
 
 func (s *SlackConnector) GetCapabilities() *bridgev2.NetworkGeneralCapabilities {
-	return &bridgev2.NetworkGeneralCapabilities{}
+	return &bridgev2.NetworkGeneralCapabilities{
+		// GetUserInfo has an internal rate limit of 1 fetch per 24 hours,
+		// so we're fine to tell the bridge to fetch user info all the time.
+		AggressiveUpdateInfo: true,
+	}
 }
 
 var roomCaps = &bridgev2.NetworkRoomCapabilities{
diff --git a/pkg/connector/chatinfo.go b/pkg/connector/chatinfo.go
index c410b45..b9187a8 100644
--- a/pkg/connector/chatinfo.go
+++ b/pkg/connector/chatinfo.go
@@ -27,6 +27,7 @@ import (
 
 	"github.com/rs/zerolog"
 	"github.com/slack-go/slack"
+	"go.mau.fi/util/jsontime"
 	"go.mau.fi/util/ptr"
 	"maunium.net/go/mautrix/bridgev2"
 	"maunium.net/go/mautrix/bridgev2/database"
@@ -295,15 +296,23 @@ func (s *SlackClient) fetchUserInfo(ctx context.Context, userID string) (*bridge
 		isBot = true
 	}
 	return &bridgev2.UserInfo{
-		Identifiers:  []string{fmt.Sprintf("slack-internal:%s", userID)},
-		Name:         name,
-		Avatar:       makeAvatar(avatarURL),
-		IsBot:        &isBot,
-		ExtraUpdates: nil,
+		Identifiers: []string{fmt.Sprintf("slack-internal:%s", userID)},
+		Name:        name,
+		Avatar:      makeAvatar(avatarURL),
+		IsBot:       &isBot,
+		ExtraUpdates: func(ctx context.Context, ghost *bridgev2.Ghost) bool {
+			ghost.Metadata.(*GhostMetadata).LastSync = jsontime.UnixNow()
+			return true
+		},
 	}, nil
 }
 
+const MinGhostSyncInterval = 24 * time.Hour
+
 func (s *SlackClient) GetUserInfo(ctx context.Context, ghost *bridgev2.Ghost) (*bridgev2.UserInfo, error) {
+	if time.Since(ghost.Metadata.(*GhostMetadata).LastSync.Time) < MinGhostSyncInterval {
+		return nil, nil
+	}
 	_, userID := slackid.ParseUserID(ghost.ID)
 	return s.fetchUserInfo(ctx, userID)
 }
diff --git a/pkg/connector/dbmeta.go b/pkg/connector/dbmeta.go
index 3c5b07c..04948d0 100644
--- a/pkg/connector/dbmeta.go
+++ b/pkg/connector/dbmeta.go
@@ -17,13 +17,17 @@
 package connector
 
 import (
+	"go.mau.fi/util/jsontime"
+
 	"maunium.net/go/mautrix/bridgev2/database"
 )
 
 func (s *SlackConnector) GetDBMetaTypes() database.MetaTypes {
 	return database.MetaTypes{
-		Portal:   nil,
-		Ghost:    nil,
+		Portal: nil,
+		Ghost: func() any {
+			return &GhostMetadata{}
+		},
 		Message:  nil,
 		Reaction: nil,
 		UserLogin: func() any {
@@ -32,6 +36,10 @@ func (s *SlackConnector) GetDBMetaTypes() database.MetaTypes {
 	}
 }
 
+type GhostMetadata struct {
+	LastSync jsontime.Unix `json:"last_sync"`
+}
+
 type UserLoginMetadata struct {
 	Email       string `json:"email"`
 	Token       string `json:"token"`