diff --git a/heaphopper/analysis/tracer/tracer.py b/heaphopper/analysis/tracer/tracer.py
index 9cee22f..7015ddc 100755
--- a/heaphopper/analysis/tracer/tracer.py
+++ b/heaphopper/analysis/tracer/tracer.py
@@ -14,7 +14,7 @@
 import sys
 from elftools.elf.elffile import ELFFile
 
-from angr.state_plugins import Flags, SimFile
+from angr.storage.file import Flags, SimFile
 from angr import SimHeapBrk
 from ..heap_condition_tracker import HeapConditionTracker, MallocInspect, FreeInspect
 from ..mem_limiter import MemLimiter