diff --git a/integrations/langchain/pyproject.toml b/integrations/langchain/pyproject.toml
index 1e19cb9..cb03c22 100644
--- a/integrations/langchain/pyproject.toml
+++ b/integrations/langchain/pyproject.toml
@@ -24,6 +24,11 @@ dev = [
   "ruff==0.6.4",
 ]
 
+integration = [
+  "langgraph>=0.2.27",
+  "pytest-timeout>=2.3.1",
+]
+
 [build-system]
 requires = ["hatchling"]
 build-backend = "hatchling.build"