diff --git a/src/mudlib/zmachine/zmemory.py b/src/mudlib/zmachine/zmemory.py
index 87c5d30..ade9adf 100644
--- a/src/mudlib/zmachine/zmemory.py
+++ b/src/mudlib/zmachine/zmemory.py
@@ -235,18 +235,18 @@ class ZMemory:
 
     def word_address(self, address):
         """Return the 'actual' address of word address ADDRESS."""
-        if address < 0 or address > (self._total_size / 2):
+        if address < 0 or address > (self._total_size // 2):
             raise ZMemoryOutOfBounds
         return address * 2
 
     def packed_address(self, address):
         """Return the 'actual' address of packed address ADDRESS."""
         if 1 <= self.version <= 3:
-            if address < 0 or address > (self._total_size / 2):
+            if address < 0 or address > (self._total_size // 2):
                 raise ZMemoryOutOfBounds
             return address * 2
         elif 4 <= self.version <= 5:
-            if address < 0 or address > (self._total_size / 4):
+            if address < 0 or address > (self._total_size // 4):
                 raise ZMemoryOutOfBounds
             return address * 4
         else:
diff --git a/src/mudlib/zmachine/zobjectparser.py b/src/mudlib/zmachine/zobjectparser.py
index dfcecf2..c65f276 100644
--- a/src/mudlib/zmachine/zobjectparser.py
+++ b/src/mudlib/zmachine/zobjectparser.py
@@ -169,12 +169,12 @@ class ZObjectParser:
         if 1 <= self._memory.version <= 3:
             if not (0 <= attrnum <= 31):
                 raise ZObjectIllegalAttributeNumber
-            bf = BitField(self._memory[object_addr + (attrnum / 8)])
+            bf = BitField(self._memory[object_addr + (attrnum // 8)])
 
         elif 4 <= self._memory.version <= 5:
             if not (0 <= attrnum <= 47):
                 raise ZObjectIllegalAttributeNumber
-            bf = BitField(self._memory[object_addr + (attrnum / 8)])
+            bf = BitField(self._memory[object_addr + (attrnum // 8)])
 
         else:
             raise ZObjectIllegalVersion