diff --git a/tests/unit_tests/test_lambda_dedup.py b/tests/unit_tests/test_lambda_dedup.py
index e25e8dff00..0c8925b5ea 100644
--- a/tests/unit_tests/test_lambda_dedup.py
+++ b/tests/unit_tests/test_lambda_dedup.py
@@ -1,19 +1,9 @@
 """Tests for lambda deduplication in cpp_generator."""
 
-import pytest
-
 from esphome import cpp_generator as cg
 from esphome.core import CORE
 
 
-@pytest.fixture(autouse=True)
-def reset_core():
-    """Reset CORE.data before each test."""
-    CORE.reset()
-    yield
-    CORE.reset()
-
-
 def test_deduplicate_identical_lambdas():
     """Test that identical stateless lambdas are deduplicated."""
     # Create two identical lambda expressions