diff --git a/Makefile b/Makefile
index df28db1073..4ee0c98848 100644
--- a/Makefile
+++ b/Makefile
@@ -134,7 +134,7 @@ clean-local:
 check-merges-reproducibility:
 	@echo "Running replay_merge for each idx in parallel using GNU Parallel..."
 	@set -e; \
-	tail -n +2 $(CSV_RESULTS) | awk -F, '{print $$1}' | parallel -j 75% python3 src/python/replay_merge.py --merges_csv $(CSV_RESULTS) -delete_workdir --idx {}
+	tail -n +2 $(CSV_RESULTS) | awk -F, '{print $$1}' | parallel -j 50% python3 src/python/replay_merge.py --merges_csv $(CSV_RESULTS) -delete_workdir --idx {}
 
 protect-repos:
 	find repos -mindepth 1 -type d -exec chmod a-w {} +
diff --git a/src/python/replay_merge.py b/src/python/replay_merge.py
index 96357f0158..e55f7484d4 100755
--- a/src/python/replay_merge.py
+++ b/src/python/replay_merge.py
@@ -21,7 +21,6 @@
 from loguru import logger
 
 logger.add("replay_merge.log", mode="a")
-logger.add(sys.stdout, colorize=True)
 
 
 def store_artifacts(result_df: pd.DataFrame) -> None: