diff --git a/aom_opus_encoder.py b/aom_opus_encoder.py
index 55f6c08..7ed80ce 100644
--- a/aom_opus_encoder.py
+++ b/aom_opus_encoder.py
@@ -459,7 +459,7 @@ def detect_autocrop_filter(input_file, significant_crop_threshold=5.0, min_crop=
         return None
     return _analyze_video_cropdetect(input_file, duration, width, height, max(1, os.cpu_count() // 2), significant_crop_threshold, min_crop, debug)
 
-def main(no_downmix=False, autocrop=False, grain=8, crf=28):
+def main(no_downmix=False, autocrop=False, grain=8, crf=25):
     check_tools()
 
     current_dir = Path(".")