diff --git a/bigquery/bqml/requirements.txt b/bigquery/bqml/requirements.txt
index cfed3976b1d..87f2fba0c86 100644
--- a/bigquery/bqml/requirements.txt
+++ b/bigquery/bqml/requirements.txt
@@ -2,7 +2,7 @@ google-cloud-bigquery[pandas,bqstorage]==3.27.0
 google-cloud-bigquery-storage==2.27.0
 pandas==2.0.3; python_version == '3.8'
 pandas==2.2.3; python_version > '3.8'
-pyarrow==17.0.0; python_version <= '3.8'
-pyarrow==20.0.0; python_version > '3.9'
+pyarrow==21.0.0; python_version <= '3.8'
+pyarrow==21.0.0; python_version > '3.9'
 flaky==3.8.1
 mock==5.1.0
diff --git a/bigquery/pandas-gbq-migration/requirements.txt b/bigquery/pandas-gbq-migration/requirements.txt
index 00692744ede..f6c306f6f9e 100644
--- a/bigquery/pandas-gbq-migration/requirements.txt
+++ b/bigquery/pandas-gbq-migration/requirements.txt
@@ -4,5 +4,5 @@ pandas==2.0.3; python_version == '3.8'
 pandas==2.2.3; python_version > '3.8'
 pandas-gbq==0.24.0
 grpcio==1.69.0
-pyarrow==17.0.0; python_version <= '3.8'
-pyarrow==20.0.0; python_version > '3.9'
+pyarrow==21.0.0; python_version <= '3.8'
+pyarrow==21.0.0; python_version > '3.9'