diff --git a/examples/system/ota/advanced_https_ota/example_test.py b/examples/system/ota/advanced_https_ota/example_test.py
index 0638595e56..2545f82955 100644
--- a/examples/system/ota/advanced_https_ota/example_test.py
+++ b/examples/system/ota/advanced_https_ota/example_test.py
@@ -1,8 +1,7 @@
 import re
 import os
 import socket
-import BaseHTTPServer
-import SimpleHTTPServer
+import http.server
 from threading import Thread
 import ssl
 
@@ -99,7 +98,7 @@ def https_request_handler():
     """
     Returns a request handler class that handles broken pipe exception
     """
-    class RequestHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
+    class RequestHandler(http.server.SimpleHTTPRequestHandler):
         def finish(self):
             try:
                 if not self.wfile.closed:
@@ -111,7 +110,7 @@ def https_request_handler():
 
         def handle(self):
             try:
-                BaseHTTPServer.BaseHTTPRequestHandler.handle(self)
+                http.server.BaseHTTPRequestHandler.handle(self)
             except socket.error:
                 pass
 
@@ -121,8 +120,7 @@ def https_request_handler():
 def start_https_server(ota_image_dir, server_ip, server_port):
     server_file, key_file = get_ca_cert(ota_image_dir)
     requestHandler = https_request_handler()
-    httpd = BaseHTTPServer.HTTPServer((server_ip, server_port),
-                                      requestHandler)
+    httpd = http.server.HTTPServer((server_ip, server_port), requestHandler)
 
     httpd.socket = ssl.wrap_socket(httpd.socket,
                                    keyfile=key_file,
@@ -140,7 +138,7 @@ def redirect_handler_factory(url):
     """
     Returns a request handler class that redirects to supplied `url`
     """
-    class RedirectHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
+    class RedirectHandler(http.server.SimpleHTTPRequestHandler):
         def do_GET(self):
             print("Sending resp, URL: " + url)
             self.send_response(301)
@@ -149,7 +147,7 @@ def redirect_handler_factory(url):
 
         def handle(self):
             try:
-                BaseHTTPServer.BaseHTTPRequestHandler.handle(self)
+                http.server.BaseHTTPRequestHandler.handle(self)
             except socket.error:
                 pass
 
@@ -161,8 +159,7 @@ def start_redirect_server(ota_image_dir, server_ip, server_port, redirection_por
     server_file, key_file = get_ca_cert(ota_image_dir)
     redirectHandler = redirect_handler_factory("https://" + server_ip + ":" + str(redirection_port) + "/advanced_https_ota.bin")
 
-    httpd = BaseHTTPServer.HTTPServer((server_ip, server_port),
-                                      redirectHandler)
+    httpd = http.server.HTTPServer((server_ip, server_port), redirectHandler)
 
     httpd.socket = ssl.wrap_socket(httpd.socket,
                                    keyfile=key_file,
diff --git a/examples/system/ota/native_ota_example/example_test.py b/examples/system/ota/native_ota_example/example_test.py
index 68f8202277..9e486d063d 100644
--- a/examples/system/ota/native_ota_example/example_test.py
+++ b/examples/system/ota/native_ota_example/example_test.py
@@ -1,8 +1,7 @@
 import re
 import os
 import socket
-import BaseHTTPServer
-import SimpleHTTPServer
+import http.server
 from threading import Thread
 import ssl
 
@@ -99,7 +98,7 @@ def https_request_handler():
     """
     Returns a request handler class that handles broken pipe exception
     """
-    class RequestHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
+    class RequestHandler(http.server.SimpleHTTPRequestHandler):
         def finish(self):
             try:
                 if not self.wfile.closed:
@@ -111,7 +110,7 @@ def https_request_handler():
 
         def handle(self):
             try:
-                BaseHTTPServer.BaseHTTPRequestHandler.handle(self)
+                http.server.BaseHTTPRequestHandler.handle(self)
             except socket.error:
                 pass
 
@@ -121,8 +120,7 @@ def https_request_handler():
 def start_https_server(ota_image_dir, server_ip, server_port):
     server_file, key_file = get_ca_cert(ota_image_dir)
     requestHandler = https_request_handler()
-    httpd = BaseHTTPServer.HTTPServer((server_ip, server_port),
-                                      requestHandler)
+    httpd = http.server.HTTPServer((server_ip, server_port), requestHandler)
 
     httpd.socket = ssl.wrap_socket(httpd.socket,
                                    keyfile=key_file,
diff --git a/examples/system/ota/simple_ota_example/example_test.py b/examples/system/ota/simple_ota_example/example_test.py
index ff1cea95b5..fd9adb4f98 100644
--- a/examples/system/ota/simple_ota_example/example_test.py
+++ b/examples/system/ota/simple_ota_example/example_test.py
@@ -1,8 +1,7 @@
 import re
 import os
 import socket
-import BaseHTTPServer
-import SimpleHTTPServer
+import http.server
 from threading import Thread
 import ssl
 
@@ -86,8 +85,7 @@ def start_https_server(ota_image_dir, server_ip, server_port):
     key_file_handle.write(server_key)
     key_file_handle.close()
 
-    httpd = BaseHTTPServer.HTTPServer((server_ip, server_port),
-                                      SimpleHTTPServer.SimpleHTTPRequestHandler)
+    httpd = http.server.HTTPServer((server_ip, server_port), http.server.SimpleHTTPRequestHandler)
 
     httpd.socket = ssl.wrap_socket(httpd.socket,
                                    keyfile=key_file,