diff --git a/protocol/src/main/java/net/md_5/bungee/protocol/ProtocolConstants.java b/protocol/src/main/java/net/md_5/bungee/protocol/ProtocolConstants.java
index b9f1ff08..ce9e5298 100644
--- a/protocol/src/main/java/net/md_5/bungee/protocol/ProtocolConstants.java
+++ b/protocol/src/main/java/net/md_5/bungee/protocol/ProtocolConstants.java
@@ -35,6 +35,7 @@ public class ProtocolConstants
     public static final int MINECRAFT_1_16_3 = 753;
     public static final int MINECRAFT_1_16_4 = 754;
     public static final int MINECRAFT_1_17 = 755;
+    public static final int MINECRAFT_1_17_1 = 756;
     public static final List<String> SUPPORTED_VERSIONS;
     public static final List<Integer> SUPPORTED_VERSION_IDS;
 
@@ -80,7 +81,8 @@ public class ProtocolConstants
                 ProtocolConstants.MINECRAFT_1_16_2,
                 ProtocolConstants.MINECRAFT_1_16_3,
                 ProtocolConstants.MINECRAFT_1_16_4,
-                ProtocolConstants.MINECRAFT_1_17
+                ProtocolConstants.MINECRAFT_1_17,
+                ProtocolConstants.MINECRAFT_1_17_1
         );
 
         if ( SNAPSHOT_SUPPORT )
diff --git a/proxy/src/main/java/net/md_5/bungee/entitymap/EntityMap.java b/proxy/src/main/java/net/md_5/bungee/entitymap/EntityMap.java
index 93989ee9..3f18393f 100644
--- a/proxy/src/main/java/net/md_5/bungee/entitymap/EntityMap.java
+++ b/proxy/src/main/java/net/md_5/bungee/entitymap/EntityMap.java
@@ -69,6 +69,7 @@ public abstract class EntityMap
             case ProtocolConstants.MINECRAFT_1_16_4:
                 return EntityMap_1_16_2.INSTANCE_1_16_2;
             case ProtocolConstants.MINECRAFT_1_17:
+            case ProtocolConstants.MINECRAFT_1_17_1:
                 return EntityMap_1_16_2.INSTANCE_1_17;
         }
         throw new RuntimeException( "Version " + version + " has no entity map" );