diff --git a/CHANGELOG.md b/CHANGELOG.md
index 83158a05a..14d4bcca3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,9 +17,14 @@ Changes are grouped as follows
 - `Fixed` for any bug fixes.
 - `Security` in case of vulnerabilities.
 
+## [6.39.4] - 2023-11-09
+## Fixed
+- Fetching datapoints from dense time series using a `targetUnit` or a target `targetUnitSystem` could result
+  in some batches not being converted to the new unit.
+
 ## [6.39.3] - 2023-11-08
 ## Fixed
-- The newely introduced parameter `connectionType` was assumed to be required from the API. This is not the case. 
+- The newely introduced parameter `connectionType` was assumed to be required from the API. This is not the case.
 
 ## [6.39.2] - 2023-11-08
 ## Fixed
diff --git a/cognite/client/_api/datapoint_tasks.py b/cognite/client/_api/datapoint_tasks.py
index ad3596131..0a275aa3c 100644
--- a/cognite/client/_api/datapoint_tasks.py
+++ b/cognite/client/_api/datapoint_tasks.py
@@ -646,6 +646,8 @@ def __init__(
         self.parent = parent
         self.is_raw_query = is_raw_query
         self.max_query_limit = max_query_limit
+        self.target_unit = target_unit
+        self.target_unit_system = target_unit_system
         self.is_done = False
 
         self.static_kwargs = identifier.as_dict()
@@ -763,6 +765,8 @@ def _static_params(self) -> dict[str, Any]:
             granularity=self.granularity,
             max_query_limit=self.max_query_limit,
             is_raw_query=self.is_raw_query,
+            target_unit=self.target_unit,
+            target_unit_system=self.target_unit_system,
         )
 
     def store_partial_result(self, res: DataPointListItem) -> list[SplittingFetchSubtask] | None:
diff --git a/cognite/client/_version.py b/cognite/client/_version.py
index abad9454d..d848f4052 100644
--- a/cognite/client/_version.py
+++ b/cognite/client/_version.py
@@ -1,4 +1,4 @@
 from __future__ import annotations
 
-__version__ = "6.39.3"
+__version__ = "6.39.4"
 __api_subversion__ = "V20220125"
diff --git a/pyproject.toml b/pyproject.toml
index 526c57716..484c582e0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [tool.poetry]
 name = "cognite-sdk"
 
-version = "6.39.3"
+version = "6.39.4"
 description = "Cognite Python SDK"
 readme = "README.md"
 documentation = "https://cognite-sdk-python.readthedocs-hosted.com"