diff --git a/server/internal/services/servers.go b/server/internal/services/servers.go
index 2e9d471..6359705 100644
--- a/server/internal/services/servers.go
+++ b/server/internal/services/servers.go
@@ -6,6 +6,7 @@ import (
 	"crypto/sha256"
 	"encoding/hex"
 	"fmt"
+	"strings"
 	"time"
 
 	"github.com/google/uuid"
@@ -141,7 +142,7 @@ func UpdateServerLastSeen(serverID, agentVersion string) error {
 	now := time.Now()
 	fields := bson.M{"last_seen": now, "status": "active"}
 	if agentVersion != "" {
-		fields["agent_version"] = agentVersion
+		fields["agent_version"] = strings.TrimPrefix(agentVersion, "v")
 	}
 	_, err := db.Col("servers").UpdateOne(ctx,
 		bson.M{"server_id": serverID},