diff --git a/packages/sqlalchemy-spanner/google/cloud/sqlalchemy_spanner/sqlalchemy_spanner.py b/packages/sqlalchemy-spanner/google/cloud/sqlalchemy_spanner/sqlalchemy_spanner.py
index ee8e72eb5665..43433690d41f 100644
--- a/packages/sqlalchemy-spanner/google/cloud/sqlalchemy_spanner/sqlalchemy_spanner.py
+++ b/packages/sqlalchemy-spanner/google/cloud/sqlalchemy_spanner/sqlalchemy_spanner.py
@@ -228,6 +228,10 @@ def pre_exec(self):
         if request_tag:
             self.cursor.request_tag = request_tag
 
+        timeout = self.execution_options.get("timeout")
+        if timeout is not None:
+            self.cursor.timeout = timeout
+
         ignore_transaction_warnings = self.execution_options.get(
             "ignore_transaction_warnings"
         )
diff --git a/packages/sqlalchemy-spanner/noxfile.py b/packages/sqlalchemy-spanner/noxfile.py
index 56884d95296d..d083e8eddcde 100644
--- a/packages/sqlalchemy-spanner/noxfile.py
+++ b/packages/sqlalchemy-spanner/noxfile.py
@@ -120,10 +120,11 @@ class = StreamHandler
 
 SQLALCHEMY_14_DEPENDENCIES = [
     "sqlalchemy>=1.4,<2.0",
+    "alembic<1.20",
 ]
 
 SQLALCHEMY_20_DEPENDENCIES = [
-    "sqlalchemy>=2.0",
+    "sqlalchemy>=2.0,<2.1",
 ]
 
 UNIT_TEST_PYTHON_VERSIONS = ["3.10", "3.11", "3.12", "3.13", "3.14", "3.15"]
diff --git a/packages/sqlalchemy-spanner/tests/test_suite_20.py b/packages/sqlalchemy-spanner/tests/test_suite_20.py
index 6c975004a8c4..87e8c2ef120b 100644
--- a/packages/sqlalchemy-spanner/tests/test_suite_20.py
+++ b/packages/sqlalchemy-spanner/tests/test_suite_20.py
@@ -78,7 +78,11 @@
     LongNameBlowoutTest as _LongNameBlowoutTest,
 )
 from sqlalchemy.testing.suite.test_ddl import TableDDLTest as _TableDDLTest
-from sqlalchemy.testing.suite.test_deprecations import *  # noqa: F401, F403
+
+try:
+    from sqlalchemy.testing.suite.test_deprecations import *  # noqa: F401, F403
+except ImportError:
+    pass
 from sqlalchemy.testing.suite.test_dialect import *  # noqa: F401, F403
 from sqlalchemy.testing.suite.test_dialect import (
     DifficultParametersTest as _DifficultParametersTest,
diff --git a/packages/sqlalchemy-spanner/tests/unit/test_timeout.py b/packages/sqlalchemy-spanner/tests/unit/test_timeout.py
new file mode 100644
index 000000000000..984e892b3ae6
--- /dev/null
+++ b/packages/sqlalchemy-spanner/tests/unit/test_timeout.py
@@ -0,0 +1,70 @@
+# Copyright 2026 Google LLC All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from unittest import mock
+
+from sqlalchemy.testing import eq_
+from sqlalchemy.testing.plugin.plugin_base import fixtures
+
+from google.cloud import spanner_dbapi
+from google.cloud.sqlalchemy_spanner.sqlalchemy_spanner import (
+    SpannerDialect,
+    SpannerExecutionContext,
+    reset_connection,
+)
+
+
+class SqlAlchemyTimeoutTest(fixtures.TestBase):
+    def test_reset_connection_preserves_default_timeout(self):
+        dbapi_conn = mock.MagicMock(spec=spanner_dbapi.Connection)
+        dbapi_conn.timeout = 30.0
+        dbapi_conn.inside_transaction = False
+
+        reset_connection(dbapi_conn, None)
+
+        eq_(dbapi_conn.timeout, 30.0)
+
+    def test_pre_exec_sets_cursor_timeout(self):
+        context = SpannerExecutionContext()
+        context.execution_options = {"timeout": 45.0}
+        context.cursor = mock.MagicMock()
+        context.cursor.timeout = None
+
+        dbapi_conn = mock.MagicMock(spec=spanner_dbapi.Connection)
+        dbapi_conn.timeout = 25.0
+        context._dbapi_connection = mock.MagicMock()
+        context._dbapi_connection.connection = dbapi_conn
+
+        context.pre_exec()
+
+        eq_(context.cursor.timeout, 45.0)
+        eq_(dbapi_conn.timeout, 25.0)
+
+    def test_query_without_timeout_does_not_alter_cursor_or_connection_timeout(self):
+        dialect = SpannerDialect()
+        dbapi_conn = mock.MagicMock(spec=spanner_dbapi.Connection)
+        dbapi_conn.timeout = 25.0
+
+        context = SpannerExecutionContext()
+        context.dialect = dialect
+        context.execution_options = {}
+        context.cursor = mock.MagicMock()
+        context.cursor.timeout = None
+        context._dbapi_connection = mock.MagicMock()
+        context._dbapi_connection.connection = dbapi_conn
+
+        context.pre_exec()
+
+        eq_(context.cursor.timeout, None)
+        eq_(dbapi_conn.timeout, 25.0)