diff --git a/croppa/main.py b/croppa/main.py
index e4c3dee..e111d4c 100644
--- a/croppa/main.py
+++ b/croppa/main.py
@@ -756,7 +756,7 @@ class VideoEditor:
     IMAGE_EXTENSIONS = {".jpg", ".jpeg", ".png", ".bmp", ".tiff", ".tif", ".webp", ".jp2", ".pbm", ".pgm", ".ppm", ".sr", ".ras"}
 
     # Crop adjustment settings
-    CROP_SIZE_STEP = 15  # pixels to expand/contract crop
+    CROP_SIZE_STEP = 5  # pixels to expand/contract crop
 
     # Motion tracking settings
     TRACKING_POINT_THRESHOLD = 10  # pixels for delete/snap radius