diff --git a/erpnext/stock/doctype/material_request/test_material_request.py b/erpnext/stock/doctype/material_request/test_material_request.py
index a25785ffd9b..331e7f8eb23 100644
--- a/erpnext/stock/doctype/material_request/test_material_request.py
+++ b/erpnext/stock/doctype/material_request/test_material_request.py
@@ -720,7 +720,7 @@ class TestMaterialRequest(IntegrationTestCase):
 		mr = frappe.copy_doc(self.globalTestRecords["Material Request"][0])
 		mr.material_request_type = "Material Issue"
 		mr.submit()
-		frappe.db.value_cache = {}
+		frappe.db.value_cache.clear()
 
 		# testing bin value after material request is submitted
 		self.assertEqual(_get_requested_qty(), existing_requested_qty - 54.0)