diff --git a/test_runner/regress/test_compaction.py b/test_runner/regress/test_compaction.py
index a780aa2e52..94c18ac548 100644
--- a/test_runner/regress/test_compaction.py
+++ b/test_runner/regress/test_compaction.py
@@ -863,7 +863,6 @@ def test_pageserver_compaction_circuit_breaker(neon_env_builder: NeonEnvBuilder)
     assert not env.pageserver.log_contains(".*Circuit breaker failure ended.*")
 
 
-@pytest.mark.skip(reason="Lakebase mode")
 def test_ps_corruption_detection_feedback(neon_env_builder: NeonEnvBuilder):
     """
     Test that when the pageserver detects corruption during image layer creation,
@@ -890,7 +889,9 @@ def test_ps_corruption_detection_feedback(neon_env_builder: NeonEnvBuilder):
     timeline_id = env.initial_timeline
 
     pageserver_http = env.pageserver.http_client()
-    workload = Workload(env, tenant_id, timeline_id)
+    workload = Workload(
+        env, tenant_id, timeline_id, endpoint_opts={"config_lines": ["neon.lakebase_mode=true"]}
+    )
     workload.init()
 
     # Enable the failpoint that will cause image layer creation to fail due to a (simulated) detected
diff --git a/test_runner/regress/test_wal_acceptor.py b/test_runner/regress/test_wal_acceptor.py
index 33d308fb5a..1e8ca216d0 100644
--- a/test_runner/regress/test_wal_acceptor.py
+++ b/test_runner/regress/test_wal_acceptor.py
@@ -2742,7 +2742,6 @@ def test_pull_timeline_partial_segment_integrity(neon_env_builder: NeonEnvBuilde
     wait_until(unevicted)
 
 
-@pytest.mark.skip(reason="Lakebase mode")
 def test_timeline_disk_usage_limit(neon_env_builder: NeonEnvBuilder):
     """
     Test that the timeline disk usage circuit breaker works as expected. We test that:
@@ -2762,7 +2761,12 @@ def test_timeline_disk_usage_limit(neon_env_builder: NeonEnvBuilder):
 
     # Create a timeline and endpoint
     env.create_branch("test_timeline_disk_usage_limit")
-    endpoint = env.endpoints.create_start("test_timeline_disk_usage_limit")
+    endpoint = env.endpoints.create_start(
+        "test_timeline_disk_usage_limit",
+        config_lines=[
+            "neon.lakebase_mode=true",
+        ],
+    )
 
     # Install the neon extension in the test database. We need it to query perf counter metrics.
     with closing(endpoint.connect()) as conn: