diff --git a/conda_lock/conda_solver.py b/conda_lock/conda_solver.py
index 7059be51e..135f717e3 100644
--- a/conda_lock/conda_solver.py
+++ b/conda_lock/conda_solver.py
@@ -268,8 +268,8 @@ def _get_pkgs_dirs(
     env = conda_env_override(platform)
     output = subprocess.check_output(args, env=env).decode()
     json_object_str = extract_json_object(output)
-    json_object: dict[str, Any] = json.loads(json_object_str)
-    pkgs_dirs_list: list[str]
+    json_object: Dict[str, Any] = json.loads(json_object_str)
+    pkgs_dirs_list: List[str]
     if "pkgs_dirs" in json_object:
         pkgs_dirs_list = json_object["pkgs_dirs"]
     elif "package cache" in json_object:
diff --git a/conda_lock/lockfile/v1/models.py b/conda_lock/lockfile/v1/models.py
index 919ea5944..3bddf28ed 100644
--- a/conda_lock/lockfile/v1/models.py
+++ b/conda_lock/lockfile/v1/models.py
@@ -127,9 +127,9 @@ def create(
         except ImportError:
             return None
 
-        git_sha: str | None = None
-        git_user_name: str | None = None
-        git_user_email: str | None = None
+        git_sha: Optional[str] = None
+        git_user_name: Optional[str] = None
+        git_user_email: Optional[str] = None
 
         try:
             repo = git.Repo(search_parent_directories=True)
diff --git a/conda_lock/virtual_package.py b/conda_lock/virtual_package.py
index 8f2fecf3b..bab39499c 100644
--- a/conda_lock/virtual_package.py
+++ b/conda_lock/virtual_package.py
@@ -48,8 +48,8 @@ def to_repodata_entry(self) -> Tuple[str, Dict[str, Any]]:
 
 class FakeRepoData(BaseModel):
     base_path: pathlib.Path
-    packages_by_subdir: defaultdict[FakePackage, Set[str]] = Field(
-        default_factory=lambda: defaultdict[FakePackage, Set[str]](set)
+    packages_by_subdir: DefaultDict[FakePackage, Set[str]] = Field(
+        default_factory=lambda: defaultdict(set)  # type: ignore[arg-type]
     )
     all_subdirs: Set[str] = {
         "noarch",
@@ -60,7 +60,7 @@ class FakeRepoData(BaseModel):
         "osx-arm64",
         "win-64",
     }
-    all_repodata: Dict[str, dict] = {}
+    all_repodata: Dict[str, Dict[str, Any]] = {}
     hash: Optional[str] = None
     old_env_vars: Dict[str, Optional[str]] = {}