diff --git a/numba_rvsdg/core/utils.py b/numba_rvsdg/core/utils.py
index 08940db..3dbf6ba 100644
--- a/numba_rvsdg/core/utils.py
+++ b/numba_rvsdg/core/utils.py
@@ -1,7 +1,10 @@
 import logging
+import sys
 
 _logger = logging.getLogger(__name__)
 
+PYVERSION = sys.version_info[:2]
+
 
 class _LogWrap:
     def __init__(self, fn):  # type: ignore
diff --git a/numba_rvsdg/tests/simulator.py b/numba_rvsdg/tests/simulator.py
index 16e9e77..7e0ff3d 100644
--- a/numba_rvsdg/tests/simulator.py
+++ b/numba_rvsdg/tests/simulator.py
@@ -8,6 +8,7 @@
     RegionBlock,
     SyntheticBlock,
 )
+from numba_rvsdg.core.utils import PYVERSION
 
 import builtins
 
@@ -327,8 +328,13 @@ def op_FOR_ITER(self, inst):
         try:
             ind = next(tos)
         except StopIteration:
-            self.stack.pop()
             self.branch = True
+            if PYVERSION in ((3, 11),):
+                self.stack.pop()
+            elif PYVERSION in ((3, 12),):
+                self.stack.append(None)
+            else:
+                raise NotImplementedError(PYVERSION)
         else:
             self.branch = False
             self.stack.append(ind)
@@ -427,3 +433,18 @@ def op_POP_JUMP_FORWARD_IF_NONE(self, inst):
     def op_POP_JUMP_BACKWARD_IF_NONE(self, inst):
         self.branch = self.stack[-1] is None
         self.stack.pop()
+
+    if PYVERSION in ((3, 12),):
+
+        def op_END_FOR(self, inst):
+            self.stack.pop()
+            self.stack.pop()
+
+    else:
+
+        def op_END_FOR(self, inst):
+            raise NotImplementedError(PYVERSION)
+
+    def op_COPY(self, inst):
+        assert inst.argval > 0
+        self.stack.append(self.stack[-inst.argval])