diff --git a/industries/energy/simulation-workflow-agent/sim_agent/pyproject.toml b/industries/energy/simulation-workflow-agent/sim_agent/pyproject.toml
index 82e893c3a..6b0d14f34 100644
--- a/industries/energy/simulation-workflow-agent/sim_agent/pyproject.toml
+++ b/industries/energy/simulation-workflow-agent/sim_agent/pyproject.toml
@@ -9,7 +9,7 @@ dependencies = [
   "pyyaml==6.0.1",
   "numpy==1.26.4",
   "colorama==0.4.6",
-  "langchain==0.1.20",
+  "langchain==0.3.30",
   "langchain-community==0.0.38",
   "langchain-nvidia-ai-endpoints==0.1.7",
   "langgraph==0.0.46",