diff --git a/changelog.md b/changelog.md
index 66badf89..c8c3520e 100644
--- a/changelog.md
+++ b/changelog.md
@@ -10,6 +10,7 @@ Internal
 ---------
 * Upgrade `sqlglot` to v30.17.0.
 * Remove `pyproject.toml` llm library cooldown policy exceptions.
+* Upgrade `polars` to v1.43.2.
 
 
 2.18.4 (2026/08/29)
diff --git a/pyproject.toml b/pyproject.toml
index 887fe808..b66ffd73 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -71,7 +71,7 @@ llm = [
     "pip ~= 26.1.2",
 ]
 dataframe = [
-    "polars ~= 1.42.1",
+    "polars ~= 1.43.2",                     # Can be upgraded after 2 Sep 2026
     "altair ~= 6.2.2",
     "vl-convert-python ~= 1.9.0",
 ]