diff --git a/tests/device_tests/zcash/test_sign_tx.py b/tests/device_tests/zcash/test_sign_tx.py
index e97e210a2..c23aa5e60 100644
--- a/tests/device_tests/zcash/test_sign_tx.py
+++ b/tests/device_tests/zcash/test_sign_tx.py
@@ -292,7 +292,7 @@ def test_external_presigned(client: Client):
             "76a914a579388225827d9f2fe9014add644487808c695d88ac"
         ),
         script_sig=bytes.fromhex(
-            "48304502210090020ba5d1c945145f04e940c4b6026a24d2b9e58e7ae53834eca6f606e457e4022040d214cb7ad2bd2cff14bac8d7b8eab0bb603c239a962ecd8535ea49ca25071e0121030e669acac1f280d1ddf441cd2ba5e97417bf2689e4bbec86df4f831bf9f7ffd0"
+            "47304402207635614c690bfe8701ebe822a7322273feaa8d664a82780901628fd4c907879e022011541c320b9d994b16ee7251b41a76e5edb5842cf2fa77db2c9381f32f921b0f0121030e669acac1f280d1ddf441cd2ba5e97417bf2689e4bbec86df4f831bf9f7ffd0"
         ),
     )
 
@@ -324,14 +324,14 @@ def test_external_presigned(client: Client):
             [inp1, inp2],
             [out1],
             version=5,
-            version_group_id=0x892F2085,
-            branch_id=0x76B809BB,
+            version_group_id=VERSION_GROUP_ID,
+            branch_id=BRANCH_ID,
         )
 
         # FAKE tx
         assert (
             serialized_tx.hex()
-            == "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"
+            == "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"
         )