diff --git a/dice_stats.py b/dice_stats.py
index 3274ccd..75d3ea0 100644
--- a/dice_stats.py
+++ b/dice_stats.py
@@ -20,14 +20,14 @@ class FiveDice:
         return True
         
     def is_three_of_a_kind(self):
-        for value in range(6):
+        for value in range(7):
             instances = self.faces().count(value)
             if instances >= 3:
                 return True
         return False
     
     def is_four_of_a_kind(self):
-        for value in range(6):
+        for value in range(7):
             instances = self.faces().count(value)
             if instances >= 4:
                 return True