diff --git a/scripts/build/build/target.py b/scripts/build/build/target.py
index 1b7ca1626b66c6..c90a603cddeb9e 100644
--- a/scripts/build/build/target.py
+++ b/scripts/build/build/target.py
@@ -45,7 +45,7 @@
 
 from collections.abc import Iterable
 from dataclasses import dataclass
-from typing import Any, Dict, Optional
+from typing import Any, Dict, List, Optional
 
 
 @dataclass(init=False)
@@ -117,7 +117,7 @@ def _HasVariantPrefix(value: str, prefix: str):
         return value[len(prefix)+1:]
 
 
-def _StringIntoParts(full_input: str, remaining_input: str, fixed_targets: list[list[TargetPart]], modifiers: list[TargetPart]):
+def _StringIntoParts(full_input: str, remaining_input: str, fixed_targets: List[List[TargetPart]], modifiers: List[TargetPart]):
     """Given an input string, process through all the input rules and return
        the underlying list of target parts for the input.
 
@@ -191,13 +191,13 @@ def __init__(self, name, builder_class, **kwargs):
         #   - esp32-devkitc-light is OK
         #   - esp32-light is NOT ok
         #   - esp32-m5stack is NOT ok
-        self.fixed_targets: list[list[TargetPart]] = []
+        self.fixed_targets: List[List[TargetPart]] = []
 
         # a list of all available modifiers for this build target
         # Modifiers can be combined in any way
-        self.modifiers: list[TargetPart] = []
+        self.modifiers: List[TargetPart] = []
 
-    def AppendFixedTargets(self, parts: list[TargetPart]):
+    def AppendFixedTargets(self, parts: List[TargetPart]):
         """Append a list of potential targets/variants.
 
         Example: