diff --git a/deepconsensus/quality_calibration/filter_reads.py b/deepconsensus/quality_calibration/filter_reads.py
index 90eef6e..a326475 100644
--- a/deepconsensus/quality_calibration/filter_reads.py
+++ b/deepconsensus/quality_calibration/filter_reads.py
@@ -28,6 +28,7 @@
 # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 """Filter reads based on the base qualities."""
 
+from collections.abc import Sequence
 import math
 from absl import app
 from absl import flags
@@ -64,7 +65,7 @@ def register_required_flags():
                                 'quality_threshold'])
 
 
-def avg_phred(base_qualities: list[float]) -> float:
+def avg_phred(base_qualities: Sequence[float]) -> float:
   """Get the average phred quality given base qualities of a read.
 
   Args:
diff --git a/docs/quick_start.md b/docs/quick_start.md
index a16e44e..41f0a92 100644
--- a/docs/quick_start.md
+++ b/docs/quick_start.md
@@ -303,8 +303,8 @@ deepconsensus run \
 At the end of your run, you should see:
 
 ```
-Processed 178 ZMWs in 230.602 seconds
-Outcome counts: OutcomeCounter(empty_sequence=0, only_gaps=0, failed_quality_filter=1, failed_length_filter=0, success=177)
+Processed 178 ZMWs in 234.950 seconds
+Outcome counts: OutcomeCounter(empty_sequence=0, only_gaps=0, failed_quality_filter=2, failed_length_filter=0, success=176)
 ```
 
 ## Optimizing Runtime