diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index 64db40e..2b2d518 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -5,38 +5,38 @@ description = "PaperAgent Backend API"
 readme = "README.md"
 requires-python = ">=3.14"
 dependencies = [
-    "fastapi>=0.136.0",
-    "requests>=2.34.0",
-    "uvicorn[standard]>=0.46.0",
-    "python-jose[cryptography]>=3.3.0",
-    "bcrypt>=4.0.0",
-    "python-multipart>=0.0.20",
-    "sqlalchemy>=2.0.49",
-    "asyncpg>=0.30.0",
-    "psycopg[binary]>=3.2.0",
-    "aiosqlite>=0.21.0",
-    "python-dotenv>=1.2.0",
-    "pydantic[email]>=2.13.0",
-    "pytest>=8.4.2",
-    "numpy>=2.3.0",
-    "matplotlib>=3.10.5",
-    "scipy>=1.16.0",
-    "pandas>=2.3.0",
+    "fastapi>=0.136.3",
+    "requests>=2.34.2",
+    "uvicorn[standard]>=0.48.0",
+    "python-jose[cryptography]>=3.5.0",
+    "bcrypt>=5.0.0",
+    "python-multipart>=0.0.30",
+    "sqlalchemy>=2.0.50",
+    "asyncpg>=0.31.0",
+    "psycopg[binary]>=3.3.4",
+    "aiosqlite>=0.22.1",
+    "python-dotenv>=1.2.2",
+    "pydantic[email]>=2.13.4",
+    "pytest>=9.0.3",
+    "numpy>=2.4.6",
+    "matplotlib>=3.10.9",
+    "scipy>=1.17.1",
+    "pandas>=3.0.3",
     "seaborn>=0.13.2",
-    "alembic>=1.17.0",
+    "alembic>=1.18.4",
     "python-docx>=1.2.0",
     "Pillow>=12.2.0",
-    "markdown>=3.9.0",
-    "PyPDF2>=3.0.0",
-    "pdfplumber>=0.11.0",
-    "openpyxl>=3.1.0",
-    "langchain>=1.2.18",
-    "langchain-openai>=1.2.1",
-    "langchain-community>=0.4.1",
-    "smolagents>=1.24.0",
-    "ddgs>=9.6.1",
-    "langchain-anthropic>=1.4.3",
-    "langchain-google-genai>=4.2.2",
+    "markdown>=3.10.2",
+    "PyPDF2>=3.0.1",
+    "pdfplumber>=0.11.9",
+    "openpyxl>=3.1.5",
+    "langchain>=1.3.4",
+    "langchain-openai>=1.2.2",
+    "langchain-community>=0.4.2",
+    "smolagents>=1.26.0",
+    "ddgs>=9.14.4",
+    "langchain-anthropic>=1.4.4",
+    "langchain-google-genai>=4.2.4",
     "pygments>=2.20.0",
     "office-word-mcp-server",
 ]