diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0d43f0a3..a93dd78e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Endpoints for querying for status of data
 - Endpoints for querying for reporting of data
 
+## [0.12.3] - 2019-11-13
+### Changed
+- Fix #262 Add OrderedDict hashlist creation by [@kauberry](https://github.com/kauberry)
+
 ## [0.12.2] - 2019-10-31
 ### Changed
 - Fix #258 Add more handling of hashlist creation by [@kauberry](https://github.com/kauberry)
diff --git a/appveyor.yml b/appveyor.yml
index ae144038..76038025 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -22,6 +22,7 @@ install:
     Expand-Archive "elasticsearch.zip" -DestinationPath "C:\elasticsearch";
     C:\pacifica\Scripts\activate.ps1;
     python -m pip install --upgrade pip setuptools wheel;
+    python -m pip install pywin32==225;
     python -m pip install -r requirements-dev.txt;
     python -m pip install 'celery[eventlet]' eventlet;
     echo 'Done';
diff --git a/tests/core/cmd_test.py b/tests/core/cmd_test.py
index f1f3d00f..a8e3f8a7 100644
--- a/tests/core/cmd_test.py
+++ b/tests/core/cmd_test.py
@@ -130,6 +130,8 @@ def _load_metadata(cls, version):
     def _upgrade_path(cls, *versions):
         cls._upgrade_package('pip', 'setuptools', 'wheel')
         cls._install_package('elasticsearch<7')
+        if sys.platform == 'win32':
+            cls._install_package('pywin32!=226')
         for version in versions:
             cls._install_metadata(version)
         if versions: