diff --git a/adapters/duckdb/pyproject.toml b/adapters/duckdb/pyproject.toml
index 6c5cfda..9d6f879 100644
--- a/adapters/duckdb/pyproject.toml
+++ b/adapters/duckdb/pyproject.toml
@@ -12,7 +12,7 @@ dependencies = [
     # metadata, and this adapter subclasses the contract's port directly.
     "continuo-engine-contract==0.8.1",
     "duckdb==1.5.6",
-    "pyarrow==25.0.1",
+    "pyarrow==26.0.0",
 ]
 classifiers = [
     "Development Status :: 4 - Beta",