diff --git a/pyproject.toml b/pyproject.toml
index 14714e8..25c46e1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "meshcore"
-version = "2.2.0"
+version = "2.2.1"
 authors = [
   { name="Florent de Lamotte", email="florent@frizoncorrea.fr" },
   { name="Alex Wolden", email="awolden@gmail.com" },
diff --git a/src/meshcore/commands/contact.py b/src/meshcore/commands/contact.py
index ce18784..9786ecd 100644
--- a/src/meshcore/commands/contact.py
+++ b/src/meshcore/commands/contact.py
@@ -124,8 +124,8 @@ class ContactCommands(CommandHandlerBase):
         data = (
             b"\x09"
             + bytes.fromhex(contact["public_key"])
-            + contact["type"].to_bytes(1)
-            + flags.to_bytes(1)
+            + contact["type"].to_bytes(1, "little")
+            + flags.to_bytes(1, "little")
             + out_path_len.to_bytes(1, "little", signed=True)
             + bytes.fromhex(out_path_hex)
             + bytes.fromhex(adv_name_hex)
diff --git a/src/meshcore/commands/device.py b/src/meshcore/commands/device.py
index 06be335..6d1c657 100644
--- a/src/meshcore/commands/device.py
+++ b/src/meshcore/commands/device.py
@@ -106,9 +106,9 @@ class DeviceCommands(CommandHandlerBase):
         )
         data = (
             b"\x26"
-            + manual_add_contacts.to_bytes(1)
-            + telemetry_mode.to_bytes(1)
-            + advert_loc_policy.to_bytes(1)
+            + manual_add_contacts.to_bytes(1, "little")
+            + telemetry_mode.to_bytes(1, "little")
+            + advert_loc_policy.to_bytes(1, "little")
         )
         return await self.send(data, [EventType.OK, EventType.ERROR])
 
@@ -120,10 +120,10 @@ class DeviceCommands(CommandHandlerBase):
         )
         data = (
             b"\x26"
-            + infos["manual_add_contacts"].to_bytes(1)
-            + telemetry_mode.to_bytes(1)
-            + infos["adv_loc_policy"].to_bytes(1)
-            + infos["multi_acks"].to_bytes(1)
+            + infos["manual_add_contacts"].to_bytes(1, "little")
+            + telemetry_mode.to_bytes(1, "little")
+            + infos["adv_loc_policy"].to_bytes(1, "little")
+            + infos["multi_acks"].to_bytes(1, "little")
         )
         return await self.send(data, [EventType.OK, EventType.ERROR])