diff --git a/poc-grpc-agent/agent_node/node.py b/poc-grpc-agent/agent_node/node.py
index 1fb873f..8f6718b 100644
--- a/poc-grpc-agent/agent_node/node.py
+++ b/poc-grpc-agent/agent_node/node.py
@@ -3,6 +3,7 @@
 import time
 import sys
 import os
+import hashlib
 from protos import agent_pb2, agent_pb2_grpc
 from agent_node.skills.manager import SkillManager
 from agent_node.core.sandbox import SandboxEngine