diff --git a/changelog.md b/changelog.md
index 94bac45f..6a55798e 100644
--- a/changelog.md
+++ b/changelog.md
@@ -12,6 +12,11 @@ Documentation
 * Minor edits to `README.md`.
 
 
+Internal
+---------
+* Upgrade `polars` dependency to v1.44.1.
+
+
 2.18.5 (2026/08/31)
 ==============
 
diff --git a/pyproject.toml b/pyproject.toml
index b66ffd73..1db33c98 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -71,7 +71,7 @@ llm = [
     "pip ~= 26.1.2",
 ]
 dataframe = [
-    "polars ~= 1.43.2",                     # Can be upgraded after 2 Sep 2026
+    "polars ~= 1.44.1",
     "altair ~= 6.2.2",
     "vl-convert-python ~= 1.9.0",
 ]