diff --git a/sklbench/runner/implementation.py b/sklbench/runner/implementation.py
index cac0bba4..59642d00 100644
--- a/sklbench/runner/implementation.py
+++ b/sklbench/runner/implementation.py
@@ -17,7 +17,7 @@
 
 import argparse
 import json
-from multiprocessing import Pool
+from concurrent.futures import ThreadPoolExecutor
 from typing import Dict, List, Tuple, Union
 
 from psutil import cpu_count
@@ -102,8 +102,8 @@ def run_benchmarks(args: argparse.Namespace) -> int:
         logger.debug(f"Unique dataset names to load:\n{list(dataset_cases.keys())}")
         n_proc = min([16, cpu_count(), n_datasets])
         logger.info(f"Prefetching {n_datasets} datasets with {n_proc} processes")
-        with Pool(n_proc) as pool:
-            pool.map(load_data_with_cleanup, dataset_cases.values())
+        with ThreadPoolExecutor(max_workers=n_proc) as executor:
+            list(executor.map(load_data_with_cleanup, dataset_cases.values()))
 
     # run bench_cases
     return_code, result = call_benchmarks(