diff --git a/tests/proxy_server.py b/tests/proxy_server.py
index 80be450b..3c76043c 100644
--- a/tests/proxy_server.py
+++ b/tests/proxy_server.py
@@ -93,7 +93,7 @@ class ThreadingHTTPServer(ThreadingMixIn, HTTPServer):
     daemon_threads = True
 
     def handle_error(self, request, client_address):
-        # surpress socket/ssl related errors
+        # suppress socket/ssl related errors
         cls, e = sys.exc_info()[:2]
         if cls is socket.error or cls is ssl.SSLError:
             pass
@@ -115,7 +115,7 @@ def __init__(self, *args, **kwargs):
         BaseHTTPRequestHandler.__init__(self, *args, **kwargs)
 
     def log_error(self, format, *args):
-        # surpress "Request timed out: timeout('timed out',)"
+        # suppress "Request timed out: timeout('timed out',)"
         if isinstance(args[0], socket.timeout):
             return
 
diff --git a/tests/test_updater.py b/tests/test_updater.py
index f7985356..56ee9fa1 100644
--- a/tests/test_updater.py
+++ b/tests/test_updater.py
@@ -918,7 +918,7 @@ def test_4_refresh(self):
     self.repository_updater.refresh()
 
     # Second, verify that expired root metadata is not updated if
-    # 'unsafely_update_root_if_necessary' is explictly set to 'False'.
+    # 'unsafely_update_root_if_necessary' is explicitly set to 'False'.
     expired_date = '1960-01-01T12:00:00Z'
     self.repository_updater.metadata['current']['root']['expires'] = expired_date
     self.assertRaises(tuf.exceptions.ExpiredMetadataError,
@@ -1653,7 +1653,7 @@ def test_10__targets_of_role(self):
 
   def test_10__preorder_depth_first_walk(self):
 
-    # Test that infinit loop is prevented if the target file is not found and
+    # Test that infinite loop is prevented if the target file is not found and
     # the max number of delegations is reached.
     valid_max_number_of_delegations = tuf.settings.MAX_NUMBER_OF_DELEGATIONS
     tuf.settings.MAX_NUMBER_OF_DELEGATIONS = 0