diff --git a/requirements.txt b/requirements.txt
index a13d60f..640e839 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 # Core dependencies - pinned to specific versions for fast, reliable installs
 pydantic==2.13.4
-langchain-core==1.3.3
-langchain==1.2.18
+langchain-core==1.4.0
+langchain==1.3.1
 langchain-openai==1.2.1
 langchain-anthropic==1.4.3
 langchain-google-genai==4.2.2
diff --git a/setup.py b/setup.py
index 796ab0a..e0ada69 100644
--- a/setup.py
+++ b/setup.py
@@ -25,8 +25,8 @@
     python_requires=">=3.12",
     install_requires=[
         "pydantic==2.13.4",
-        "langchain-core==1.3.3",
-        "langchain==1.2.18",
+        "langchain-core==1.4.0",
+        "langchain==1.3.1",
         "langchain-openai==1.2.1",
         "langchain-anthropic==1.4.3",
         "langchain-google-genai==4.2.2",