diff --git a/tests/core/pyspec/eth2spec/test/phase_0/__init__.py b/tests/core/pyspec/eth2spec/test/phase0/__init__.py similarity index 100% rename from tests/core/pyspec/eth2spec/test/phase_0/__init__.py rename to tests/core/pyspec/eth2spec/test/phase0/__init__.py diff --git a/tests/core/pyspec/eth2spec/test/phase_0/block_processing/__init__.py b/tests/core/pyspec/eth2spec/test/phase0/block_processing/__init__.py similarity index 100% rename from tests/core/pyspec/eth2spec/test/phase_0/block_processing/__init__.py rename to tests/core/pyspec/eth2spec/test/phase0/block_processing/__init__.py diff --git a/tests/core/pyspec/eth2spec/test/phase_0/block_processing/test_process_attestation.py b/tests/core/pyspec/eth2spec/test/phase0/block_processing/test_process_attestation.py similarity index 100% rename from tests/core/pyspec/eth2spec/test/phase_0/block_processing/test_process_attestation.py rename to tests/core/pyspec/eth2spec/test/phase0/block_processing/test_process_attestation.py diff 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tests/core/pyspec/eth2spec/test/phase_0/epoch_processing/test_process_registry_updates.py rename to tests/core/pyspec/eth2spec/test/phase0/epoch_processing/test_process_registry_updates.py diff --git a/tests/core/pyspec/eth2spec/test/phase_0/epoch_processing/test_process_rewards_and_penalties.py b/tests/core/pyspec/eth2spec/test/phase0/epoch_processing/test_process_rewards_and_penalties.py similarity index 100% rename from tests/core/pyspec/eth2spec/test/phase_0/epoch_processing/test_process_rewards_and_penalties.py rename to tests/core/pyspec/eth2spec/test/phase0/epoch_processing/test_process_rewards_and_penalties.py diff --git a/tests/core/pyspec/eth2spec/test/phase_0/epoch_processing/test_process_slashings.py b/tests/core/pyspec/eth2spec/test/phase0/epoch_processing/test_process_slashings.py similarity index 100% rename from tests/core/pyspec/eth2spec/test/phase_0/epoch_processing/test_process_slashings.py rename to 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