diff --git a/pyproject.toml b/pyproject.toml
index 204b5c5..8f73cdc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ dependencies = [
     "certifi==2025.1.31",
     "Jinja2==3.1.6",
     "langchain==0.3.30",
-    "langchain-anthropic==0.3.10",
+    "langchain-anthropic==1.4.6",
     "lxml==6.1.0",
     "MarkupSafe==3.0.2",
     "python-dotenv==1.1.0",
diff --git a/requirements.txt b/requirements.txt
index c64e2bb..3d220cb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ beautifulsoup4==4.13.3
 certifi==2025.1.31
 Jinja2==3.1.6
 langchain==0.3.30
-langchain-anthropic==0.3.10
+langchain-anthropic==1.4.6
 lxml==6.1.0
 MarkupSafe==3.0.2
 pytest==8.3.2 # Added for testing