5 files changed, 7 insertions, 7 deletions
diff --git a/components/net/at/src/at_base_cmd.c b/components/net/at/src/at_base_cmd.c
index b182477f9b..00720c87b2 100644
--- a/components/net/at/src/at_base_cmd.c
+++ b/components/net/at/src/at_base_cmd.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/at/src/at_cli.c b/components/net/at/src/at_cli.c
index e39a913357..25fbb708f4 100644
--- a/components/net/at/src/at_cli.c
+++ b/components/net/at/src/at_cli.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -27,7 +27,7 @@ static rt_err_t (*odev_rx_ind)(rt_device_t dev, rt_size_t size) = RT_NULL;
 #ifdef AT_USING_CLIENT
 static struct rt_semaphore client_rx_notice;
 static struct rt_ringbuffer *client_rx_fifo = RT_NULL;
-#endif 
+#endif
 
 static char console_getchar(void)
 {
diff --git a/components/net/at/src/at_client.c b/components/net/at/src/at_client.c
index b9d0ee89cb..d636460c2d 100644
--- a/components/net/at/src/at_client.c
+++ b/components/net/at/src/at_client.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -579,7 +579,7 @@ int at_obj_set_urc_table(at_client_t client, const struct at_urc *urc_table, rt_
         client->urc_table[client->urc_table_size].urc = urc_table;
         client->urc_table[client->urc_table_size].urc_size = table_sz;
         client->urc_table_size++;
-        
+
         rt_free(old_urc_table);
     }
 
diff --git a/components/net/at/src/at_server.c b/components/net/at/src/at_server.c
index 81d00951f5..bfbbbae2d3 100644
--- a/components/net/at/src/at_server.c
+++ b/components/net/at/src/at_server.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/components/net/at/src/at_utils.c b/components/net/at/src/at_utils.c
index 7d26425f56..8d8887fe5e 100644
--- a/components/net/at/src/at_utils.c
+++ b/components/net/at/src/at_utils.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *