diff --git a/testcontainers/oracle.py b/testcontainers/oracle.py
index b8a426445..1fcfdc675 100644
--- a/testcontainers/oracle.py
+++ b/testcontainers/oracle.py
@@ -22,7 +22,7 @@ def __init__(self, image="wnameless/oracle-xe-11g-r2:latest", **kwargs):
     def get_connection_url(self):
         return super()._create_connection_url(
             dialect="oracle", username="system", password="oracle", port=self.container_port,
-            db_name="xe"
+            db_name="XE"
         )
 
     def _configure(self):