diff --git a/src/hydra_zen/wrapper/_implementations.py b/src/hydra_zen/wrapper/_implementations.py
index f9c38967..0029de5f 100644
--- a/src/hydra_zen/wrapper/_implementations.py
+++ b/src/hydra_zen/wrapper/_implementations.py
@@ -971,14 +971,14 @@ def get_name(target: _HasName) -> str:
 #
 # This default dict enables us to easily update/merge the default arguments for a
 # specific ZenStore instance, in support of self-partialing behavior.
-_StoreCallSig = TypedDict("_StoreCallSig", [
-    ("name", Union[NodeName, Callable[[Any], NodeName]]),
-    ("group", Union[GroupName, Callable[[Any], GroupName]]),
-    ("package", Optional[Union[str, Callable[[Any], str]]]),
-    ("provider", Optional[str]),
-    ("__kw", dict[str, Any]),  # kwargs passed to to_config
-    ("to_config", Callable[[Any], Any]),
-])
+_StoreCallSig = TypedDict("_StoreCallSig", {
+    "name": Union[NodeName, Callable[[Any], NodeName]],
+    "group": Union[GroupName, Callable[[Any], GroupName]],
+    "package": Optional[Union[str, Callable[[Any], str]]],
+    "provider": Optional[str]),
+    "__kw": dict[str, Any],  # kwargs passed to to_config
+    "to_config": Callable[[Any], Any],
+})
 
 
 # TODO: make frozen dict