diff --git a/trezorlib/tests/device_tests/test_msg_signtx_zcash.py b/trezorlib/tests/device_tests/test_msg_signtx_zcash.py
index 831f8ba33..ae9d71049 100644
--- a/trezorlib/tests/device_tests/test_msg_signtx_zcash.py
+++ b/trezorlib/tests/device_tests/test_msg_signtx_zcash.py
@@ -84,7 +84,7 @@ class TestMsgSigntxZcash(TrezorTest):
                 version=3,
                 overwintered=True,
                 version_group_id=0x3C48270,
-                branch_id=0x5ba81b19,
+                branch_id=0x5BA81B19,
             )
             _, serialized_tx = btc.sign_tx(
                 self.client,
@@ -151,7 +151,7 @@ class TestMsgSigntxZcash(TrezorTest):
                 version=4,
                 overwintered=True,
                 version_group_id=0x892F2085,
-                branch_id=0x76b809bb,
+                branch_id=0x76B809BB,
             )
             _, serialized_tx = btc.sign_tx(
                 self.client,