diff --git a/setup.cfg b/setup.cfg
index 3101036..b9d0f08 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -50,8 +50,7 @@ install_requires =
   click>=6.7,!=7.0
   pip>=9.0.3
   setuptools
-  importlib_resources; python_version < "3.7"
-python_requires = >=3.6
+python_requires = >=3.7
 include_package_data = True
 
 [options.extras_require]
diff --git a/src/shiv/__version__.py b/src/shiv/__version__.py
index 9e604c0..6849410 100644
--- a/src/shiv/__version__.py
+++ b/src/shiv/__version__.py
@@ -1 +1 @@
-__version__ = "1.0.7"
+__version__ = "1.1.0"
diff --git a/src/shiv/bootstrap/environment.py b/src/shiv/bootstrap/environment.py
index 75625b7..fdc80ec 100644
--- a/src/shiv/bootstrap/environment.py
+++ b/src/shiv/bootstrap/environment.py
@@ -2,9 +2,10 @@
 This module contains the ``Environment`` object, which combines settings decided at build time with
 overrides defined at runtime (via environment variables).
 """
+from __future__ import annotations
 import json
 import os
-from typing import Any, Optional
+from typing import Any, Dict, Optional
 
 
 def str_bool(v) -> bool:
@@ -35,7 +36,7 @@ def __init__(
         entry_point: Optional[str] = None,
         extend_pythonpath: bool = False,
         prepend_pythonpath: Optional[str] = None,
-        hashes: Optional[dict[str, Any]] = None,
+        hashes: Optional[Dict[str, Any]] = None,
         no_modify: bool = False,
         reproducible: bool = False,
         script: Optional[str] = None,
@@ -46,7 +47,7 @@ def __init__(
         self.always_write_cache: bool = always_write_cache
         self.build_id: Optional[str] = build_id
         self.built_at: str = built_at
-        self.hashes: Optional[dict[str, Any]] = hashes or {}
+        self.hashes: Optional[Dict[str, Any]] = hashes or {}
         self.no_modify: bool = no_modify
         self.reproducible: bool = reproducible
         self.preamble: Optional[str] = preamble