diff --git a/src/main/java/net/minestom/server/network/packet/server/play/AdvancementsPacket.java b/src/main/java/net/minestom/server/network/packet/server/play/AdvancementsPacket.java
index 0eee0aa48..6ed240577 100644
--- a/src/main/java/net/minestom/server/network/packet/server/play/AdvancementsPacket.java
+++ b/src/main/java/net/minestom/server/network/packet/server/play/AdvancementsPacket.java
@@ -1,5 +1,6 @@
 package net.minestom.server.network.packet.server.play;
 
+import net.minestom.server.chat.Chat;
 import net.minestom.server.item.ItemStack;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.network.packet.server.ServerPacket;
@@ -91,8 +92,8 @@ public class AdvancementsPacket implements ServerPacket {
         public float y;
 
         private void write(PacketWriter writer) {
-            writer.writeSizedString(title);
-            writer.writeSizedString(description);
+            writer.writeSizedString(Chat.toJsonString(Chat.fromLegacyText(title)));
+            writer.writeSizedString(Chat.toJsonString(Chat.fromLegacyText(title)));
             writer.writeItemStack(icon);
             writer.writeVarInt(frameType.ordinal());
             writer.writeInt(flags);
diff --git a/src/main/java/net/minestom/server/network/packet/server/play/BossBarPacket.java b/src/main/java/net/minestom/server/network/packet/server/play/BossBarPacket.java
index 173f4c508..b3be2424d 100644
--- a/src/main/java/net/minestom/server/network/packet/server/play/BossBarPacket.java
+++ b/src/main/java/net/minestom/server/network/packet/server/play/BossBarPacket.java
@@ -2,6 +2,7 @@ package net.minestom.server.network.packet.server.play;
 
 import net.minestom.server.bossbar.BarColor;
 import net.minestom.server.bossbar.BarDivision;
+import net.minestom.server.chat.Chat;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.network.packet.server.ServerPacket;
 import net.minestom.server.network.packet.server.ServerPacketIdentifier;
@@ -27,7 +28,7 @@ public class BossBarPacket implements ServerPacket {
 
         switch (action) {
             case ADD:
-                writer.writeSizedString(title);
+                writer.writeSizedString(Chat.toJsonString(Chat.fromLegacyText(title)));
                 writer.writeFloat(health);
                 writer.writeVarInt(color.ordinal());
                 writer.writeVarInt(division.ordinal());
@@ -40,7 +41,7 @@ public class BossBarPacket implements ServerPacket {
                 writer.writeFloat(health);
                 break;
             case UPDATE_TITLE:
-                writer.writeSizedString(title);
+                writer.writeSizedString(Chat.toJsonString(Chat.fromLegacyText(title)));
                 break;
             case UPDATE_STYLE:
                 writer.writeVarInt(color.ordinal());
diff --git a/src/main/java/net/minestom/server/network/packet/server/play/DisconnectPacket.java b/src/main/java/net/minestom/server/network/packet/server/play/DisconnectPacket.java
index 4eaffd5f8..034f19d7d 100644
--- a/src/main/java/net/minestom/server/network/packet/server/play/DisconnectPacket.java
+++ b/src/main/java/net/minestom/server/network/packet/server/play/DisconnectPacket.java
@@ -1,5 +1,6 @@
 package net.minestom.server.network.packet.server.play;
 
+import net.minestom.server.chat.Chat;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.network.packet.server.ServerPacket;
 import net.minestom.server.network.packet.server.ServerPacketIdentifier;
@@ -10,7 +11,7 @@ public class DisconnectPacket implements ServerPacket {
 
     @Override
     public void write(PacketWriter writer) {
-        writer.writeSizedString(message);
+        writer.writeSizedString(Chat.toJsonString(Chat.fromLegacyText(message)));
     }
 
     @Override
diff --git a/src/main/java/net/minestom/server/network/packet/server/play/ScoreboardObjectivePacket.java b/src/main/java/net/minestom/server/network/packet/server/play/ScoreboardObjectivePacket.java
index ba23eb20d..ebf4e586a 100644
--- a/src/main/java/net/minestom/server/network/packet/server/play/ScoreboardObjectivePacket.java
+++ b/src/main/java/net/minestom/server/network/packet/server/play/ScoreboardObjectivePacket.java
@@ -1,5 +1,6 @@
 package net.minestom.server.network.packet.server.play;
 
+import net.minestom.server.chat.Chat;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.network.packet.server.ServerPacket;
 import net.minestom.server.network.packet.server.ServerPacketIdentifier;
@@ -17,7 +18,7 @@ public class ScoreboardObjectivePacket implements ServerPacket {
         writer.writeByte(mode);
 
         if (mode == 0 || mode == 2) {
-            writer.writeSizedString(objectiveValue);
+            writer.writeSizedString(Chat.toJsonString(Chat.fromLegacyText(objectiveValue)));
             writer.writeVarInt(type);
         }
     }
diff --git a/src/main/java/net/minestom/server/network/packet/server/play/TeamsPacket.java b/src/main/java/net/minestom/server/network/packet/server/play/TeamsPacket.java
index b48e91de4..33584cc32 100644
--- a/src/main/java/net/minestom/server/network/packet/server/play/TeamsPacket.java
+++ b/src/main/java/net/minestom/server/network/packet/server/play/TeamsPacket.java
@@ -27,13 +27,13 @@ public class TeamsPacket implements ServerPacket {
         switch (action) {
             case CREATE_TEAM:
             case UPDATE_TEAM_INFO:
-                writer.writeSizedString(teamDisplayName);
+                writer.writeSizedString(Chat.toJsonString(Chat.fromLegacyText(teamDisplayName)));
                 writer.writeByte(friendlyFlags);
                 writer.writeSizedString(nameTagVisibility.getIdentifier());
                 writer.writeSizedString(collisionRule.getIdentifier());
                 writer.writeVarInt(teamColor);
-                writer.writeSizedString(teamPrefix);
-                writer.writeSizedString(teamSuffix);
+                writer.writeSizedString(Chat.toJsonString(Chat.fromLegacyText(teamPrefix)));
+                writer.writeSizedString(Chat.toJsonString(Chat.fromLegacyText(teamSuffix)));
                 break;
             case REMOVE_TEAM:
 
diff --git a/src/main/java/net/minestom/server/network/packet/server/play/TitlePacket.java b/src/main/java/net/minestom/server/network/packet/server/play/TitlePacket.java
index 77aef0c10..e7d2d0b0b 100644
--- a/src/main/java/net/minestom/server/network/packet/server/play/TitlePacket.java
+++ b/src/main/java/net/minestom/server/network/packet/server/play/TitlePacket.java
@@ -25,13 +25,13 @@ public class TitlePacket implements ServerPacket {
 
         switch (action) {
             case SET_TITLE:
-                writer.writeSizedString(titleText);
+                writer.writeSizedString(Chat.toJsonString(Chat.fromLegacyText(titleText)));
                 break;
             case SET_SUBTITLE:
-                writer.writeSizedString(subtitleText);
+                writer.writeSizedString(Chat.toJsonString(Chat.fromLegacyText(subtitleText)));
                 break;
             case SET_ACTION_BAR:
-                writer.writeSizedString(actionBarText);
+                writer.writeSizedString(Chat.toJsonString(Chat.fromLegacyText(actionBarText)));
                 break;
             case SET_TIMES_AND_DISPLAY:
                 writer.writeInt(fadeIn);