diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 04ec87c..2bbcf43 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -9,6 +9,7 @@ source:
   sha256: aec25c98c5bf77a9ce5c1d2e9bf0564b4129339c8a122f42d6c55d8bdcef42d6
   patches:
     - patches/0001-point-to-our-own-libraries-includes.patch
+    - patches/0002-remove-TZDIR-work-arounds-that-aren-t-needed-for-orc.patch
 
 build:
   number: 0
@@ -32,15 +33,13 @@ requirements:
   run:
     - python
     - backports.zoneinfo  # [py<39]
-    - python-tzdata  # [win]
+    - tzdata
 
 test:
   requires:
     - pytest
   imports:
-    - pytest
     - pyorc
-    - tzdata  # [win]
   source_files:
     - tests/
   commands:
diff --git a/recipe/patches/0001-point-to-our-own-libraries-includes.patch b/recipe/patches/0001-point-to-our-own-libraries-includes.patch
index aeaa46d..78afd12 100644
--- a/recipe/patches/0001-point-to-our-own-libraries-includes.patch
+++ b/recipe/patches/0001-point-to-our-own-libraries-includes.patch
@@ -1,7 +1,7 @@
 From dd0833a651f238114c7b744bd190036d64f01a23 Mon Sep 17 00:00:00 2001
 From: "H. Vetinari" <h.vetinari@gmx.com>
 Date: Tue, 21 May 2024 17:27:27 +1100
-Subject: [PATCH] point to our own libraries/includes
+Subject: [PATCH 1/2] point to our own libraries/includes
 
 ---
  setup.py | 19 ++++---------------
diff --git a/recipe/patches/0002-remove-TZDIR-work-arounds-that-aren-t-needed-for-orc.patch b/recipe/patches/0002-remove-TZDIR-work-arounds-that-aren-t-needed-for-orc.patch
new file mode 100644
index 0000000..9b9a14d
--- /dev/null
+++ b/recipe/patches/0002-remove-TZDIR-work-arounds-that-aren-t-needed-for-orc.patch
@@ -0,0 +1,42 @@
+From 3175fd8250a35a85e9e5e64b1980806d269c4e32 Mon Sep 17 00:00:00 2001
+From: "H. Vetinari" <h.vetinari@gmx.com>
+Date: Tue, 21 May 2024 21:38:05 +1100
+Subject: [PATCH 2/2] remove TZDIR work-arounds that aren't needed for
+ orc>=2.0.1
+
+---
+ setup.py              | 1 -
+ src/pyorc/__init__.py | 8 --------
+ 2 files changed, 9 deletions(-)
+
+diff --git a/setup.py b/setup.py
+index 2d147b2..14e6287 100644
+--- a/setup.py
++++ b/setup.py
+@@ -263,7 +263,6 @@ setup(
+     ],
+     python_requires=">=3.6",
+     install_requires=[
+-        'tzdata >= 2020.5 ; sys_platform == "win32"',
+         'backports.zoneinfo >= 0.2.1 ; python_version < "3.9"',
+     ],
+ )
+diff --git a/src/pyorc/__init__.py b/src/pyorc/__init__.py
+index 9be7043..447481c 100644
+--- a/src/pyorc/__init__.py
++++ b/src/pyorc/__init__.py
+@@ -2,14 +2,6 @@ import os
+ import sys
+ from typing import NamedTuple
+ 
+-if sys.platform.startswith("win32") and "TZDIR" not in os.environ:
+-    # Windows does not come with a standard IANA time zone database,
+-    # but the ORC lib requires it. Set the TZDIR environment variable
+-    # to the tzdata module's data directory.
+-    import tzdata
+-
+-    os.environ["TZDIR"] = os.path.join(os.path.dirname(tzdata.__file__), "zoneinfo")
+-
+ from pyorc._pyorc import _orc_version
+ 
+ from .enums import *