diff --git a/test_runner/fixtures/neon_cli.py b/test_runner/fixtures/neon_cli.py
index 4eaa4b7d99..bb07e2b6d1 100644
--- a/test_runner/fixtures/neon_cli.py
+++ b/test_runner/fixtures/neon_cli.py
@@ -103,7 +103,7 @@ class AbstractNeonCli:
             else:
                 stdout = ""
 
-            log.warn(f"CLI timeout: stderr={stderr}, stdout={stdout}")
+            log.warning(f"CLI timeout: stderr={stderr}, stdout={stdout}")
             raise
 
         indent = "  "
diff --git a/test_runner/regress/test_pageserver_secondary.py b/test_runner/regress/test_pageserver_secondary.py
index 3aa0c63979..f2523ec9b5 100644
--- a/test_runner/regress/test_pageserver_secondary.py
+++ b/test_runner/regress/test_pageserver_secondary.py
@@ -510,7 +510,7 @@ def list_elegible_layers(
         except KeyError:
             # Unexpected: tests should call this when pageservers are in a quiet state such that the layer map
             # matches what's on disk.
-            log.warn(f"Lookup {layer_file_name} from {list(visible_map.keys())}")
+            log.warning(f"Lookup {layer_file_name} from {list(visible_map.keys())}")
             raise
 
     return list(c for c in candidates if is_visible(c))
@@ -636,7 +636,7 @@ def test_secondary_downloads(neon_env_builder: NeonEnvBuilder):
     except:
         # On assertion failures, log some details to help with debugging
         heatmap = env.pageserver_remote_storage.heatmap_content(tenant_id)
-        log.warn(f"heatmap contents: {json.dumps(heatmap, indent=2)}")
+        log.warning(f"heatmap contents: {json.dumps(heatmap, indent=2)}")
         raise
 
     # Scrub the remote storage