diff --git a/scripts/assign-colors.py b/scripts/assign-colors.py
index 679a77d3f..a73a55584 100644
--- a/scripts/assign-colors.py
+++ b/scripts/assign-colors.py
@@ -11,7 +11,7 @@ def date_within_last_n_months(date_str, cutoff_date):
     if 'XX' in date_str:
         return False  # Ignore uncertain dates
     try:
-        date = datetime.datetime.strptime(date_str, "%Y-%m-%d")
+        date = datetime.datetime.strptime(date_str, "%Y-%m-%d").date()
         return date >= cutoff_date
     except ValueError:
         return False