diff --git a/Lib/test/test_dircache.py b/Lib/test/test_dircache.py
index 3f10872..68f6fc2 100644
--- a/Lib/test/test_dircache.py
+++ b/Lib/test/test_dircache.py
@@ -46,7 +46,7 @@
 
         if sys.platform[:3] not in ('win', 'os2'):
             # Sadly, dircache has the same granularity as stat.mtime, and so
-            # can't notice any changes that occured within 1 sec of the last
+            # can't notice any changes that occurred within 1 sec of the last
             # time it examined a directory.
             time.sleep(1)
             self.writeTemp("test1")
diff --git a/Lib/test/test_threadsignals.py b/Lib/test/test_threadsignals.py
index fcae312..51e3d97 100644
--- a/Lib/test/test_threadsignals.py
+++ b/Lib/test/test_threadsignals.py
@@ -21,7 +21,7 @@
     return usr1, usr2, alrm
 
 
-# The signal handler. Just note that the signal occured and
+# The signal handler. Just note that the signal occurred and
 # from who.
 def handle_signals(sig,frame):
     signal_blackboard[sig]['tripped'] += 1