diff --git a/Lib/importlib/_bootstrap_external.py b/Lib/importlib/_bootstrap_external.py
index 6c703fa..2434cf0 100644
--- a/Lib/importlib/_bootstrap_external.py
+++ b/Lib/importlib/_bootstrap_external.py
@@ -276,6 +276,7 @@
 #     Python 3.9a0  3422 (remove BEGIN_FINALLY, END_FINALLY, CALL_FINALLY, POP_FINALLY bytecodes #33387)
 #     Python 3.9a2  3423 (add IS_OP, CONTAINS_OP and JUMP_IF_NOT_EXC_MATCH bytecodes #39156)
 #     Python 3.9a2  3424 (simplify bytecodes for *value unpacking)
+#     Python 3.9a2  3425 (simplify bytecodes for **value unpacking)
 
 #
 # MAGIC must change whenever the bytecode emitted by the compiler may no
@@ -285,7 +286,7 @@
 # Whenever MAGIC_NUMBER is changed, the ranges in the magic_values array
 # in PC/launcher.c must also be updated.
 
-MAGIC_NUMBER = (3424).to_bytes(2, 'little') + b'\r\n'
+MAGIC_NUMBER = (3425).to_bytes(2, 'little') + b'\r\n'
 _RAW_MAGIC_NUMBER = int.from_bytes(MAGIC_NUMBER, 'little')  # For import.c
 
 _PYCACHE = '__pycache__'
diff --git a/Lib/opcode.py b/Lib/opcode.py
index 5bc2ddc..ac1aa53 100644
--- a/Lib/opcode.py
+++ b/Lib/opcode.py
@@ -200,9 +200,6 @@
 def_op('EXTENDED_ARG', 144)
 EXTENDED_ARG = 144
 
-def_op('BUILD_MAP_UNPACK', 150)
-def_op('BUILD_MAP_UNPACK_WITH_CALL', 151)
-
 jrel_op('SETUP_ASYNC_WITH', 154)
 
 def_op('FORMAT_VALUE', 155)
@@ -214,5 +211,7 @@
 
 def_op('LIST_EXTEND', 162)
 def_op('SET_UPDATE', 163)
+def_op('DICT_MERGE', 164)
+def_op('DICT_UPDATE', 165)
 
 del def_op, name_op, jrel_op, jabs_op