diff --git a/core/src/apps/cardano/auxiliary_data.py b/core/src/apps/cardano/auxiliary_data.py
index ac6c11612..54001a9b6 100644
--- a/core/src/apps/cardano/auxiliary_data.py
+++ b/core/src/apps/cardano/auxiliary_data.py
@@ -138,7 +138,7 @@ async def _show_governance_registration(
 ) -> None:
     for delegation in parameters.delegations:
         encoded_public_key = bech32.encode(
-            bech32.HRP_JORMUN_PUBLIC_KEY, delegation.voting_public_key
+            bech32.HRP_GOVERNANCE_PUBLIC_KEY, delegation.voting_public_key
         )
         await layout.confirm_governance_registration_delegation(
             ctx, encoded_public_key, delegation.weight
@@ -147,7 +147,7 @@ async def _show_governance_registration(
     encoded_public_key: str | None = None
     if parameters.voting_public_key:
         encoded_public_key = bech32.encode(
-            bech32.HRP_JORMUN_PUBLIC_KEY, parameters.voting_public_key
+            bech32.HRP_GOVERNANCE_PUBLIC_KEY, parameters.voting_public_key
         )
 
     reward_address = addresses.derive_human_readable(
diff --git a/core/src/apps/cardano/helpers/bech32.py b/core/src/apps/cardano/helpers/bech32.py
index 22a65a7ef..634802713 100644
--- a/core/src/apps/cardano/helpers/bech32.py
+++ b/core/src/apps/cardano/helpers/bech32.py
@@ -7,8 +7,7 @@ HRP_ADDRESS = "addr"
 HRP_TESTNET_ADDRESS = "addr_test"
 HRP_REWARD_ADDRESS = "stake"
 HRP_TESTNET_REWARD_ADDRESS = "stake_test"
-# Jormungandr public key prefix - https://github.com/input-output-hk/voting-tools-lib/blob/18dae637e80db72444476606ab264b973bcf1a9d/src/Cardano/API/Extended.hs#L226
-HRP_JORMUN_PUBLIC_KEY = "ed25519_pk"
+HRP_GOVERNANCE_PUBLIC_KEY = "gov_vk"
 HRP_SCRIPT_HASH = "script"
 HRP_KEY_HASH = "addr_vkh"
 HRP_SHARED_KEY_HASH = "addr_shared_vkh"