diff --git a/python_actr/scheduler.py b/python_actr/scheduler.py
index b10f6b6..56e9c9a 100644
--- a/python_actr/scheduler.py
+++ b/python_actr/scheduler.py
@@ -1,8 +1,5 @@
 
-try:
-    import heapq
-except ImportError:
-    import ccm.legacy.heapq as heapq
+import heapq
 import copy
 
 from . import logger