diff --git a/bumble/hci.py b/bumble/hci.py
index 41deed2..057c04a 100644
--- a/bumble/hci.py
+++ b/bumble/hci.py
@@ -121,6 +121,7 @@ HCI_VERSION_BLUETOOTH_CORE_5_0     = 9
 HCI_VERSION_BLUETOOTH_CORE_5_1     = 10
 HCI_VERSION_BLUETOOTH_CORE_5_2     = 11
 HCI_VERSION_BLUETOOTH_CORE_5_3     = 12
+HCI_VERSION_BLUETOOTH_CORE_5_4     = 13
 
 HCI_VERSION_NAMES = {
     HCI_VERSION_BLUETOOTH_CORE_1_0B:    'HCI_VERSION_BLUETOOTH_CORE_1_0B',
@@ -135,7 +136,8 @@ HCI_VERSION_NAMES = {
     HCI_VERSION_BLUETOOTH_CORE_5_0:     'HCI_VERSION_BLUETOOTH_CORE_5_0',
     HCI_VERSION_BLUETOOTH_CORE_5_1:     'HCI_VERSION_BLUETOOTH_CORE_5_1',
     HCI_VERSION_BLUETOOTH_CORE_5_2:     'HCI_VERSION_BLUETOOTH_CORE_5_2',
-    HCI_VERSION_BLUETOOTH_CORE_5_3:     'HCI_VERSION_BLUETOOTH_CORE_5_3'
+    HCI_VERSION_BLUETOOTH_CORE_5_3:     'HCI_VERSION_BLUETOOTH_CORE_5_3',
+    HCI_VERSION_BLUETOOTH_CORE_5_4:     'HCI_VERSION_BLUETOOTH_CORE_5_4',
 }
 
 # LMP Version