diff --git a/backend/requirements.txt b/backend/requirements.txt
index 0fdcb618fd2..72b0d5af2a6 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -1,19 +1,19 @@
 fastapi==0.118.0
 uvicorn[standard]==0.37.0
 pydantic==2.11.9
-python-multipart==0.0.20
+python-multipart==0.0.22
 itsdangerous==2.2.0
 
-python-socketio==5.13.0
+python-socketio==5.14.0
 python-jose==3.5.0
 cryptography
 bcrypt==5.0.0
 argon2-cffi==25.1.0
 PyJWT[crypto]==2.10.1
-authlib==1.6.5
+authlib==1.6.7
 
 requests==2.32.5
-aiohttp==3.12.15
+aiohttp==3.13.3
 async-timeout
 aiocache
 aiofiles
@@ -37,7 +37,7 @@ asgiref==3.8.1
 
 # AI libraries
 tiktoken
-mcp==1.14.1
+mcp==1.23.0
 
 openai
 anthropic
@@ -58,13 +58,13 @@ pyarrow==20.0.0 # fix: pin pyarrow version to 20 for rpi compatibility #15897
 einops==0.8.1 
 
 ftfy==6.2.3
-pypdf==6.0.0
+pypdf==6.7.5
 fpdf2==2.8.2
-pymdown-extensions==10.14.2
+pymdown-extensions==10.16.1
 docx2txt==0.8
 python-pptx==1.0.2
-unstructured==0.18.15
-nltk==3.9.1
+unstructured==0.18.18
+nltk==3.9.3
 Markdown==3.9
 pypandoc==1.15
 pandas==2.2.3
@@ -77,7 +77,7 @@ sentencepiece
 soundfile==0.13.1
 azure-ai-documentintelligence==1.0.2
 
-pillow==11.3.0
+pillow==12.1.1
 opencv-python-headless==4.11.0.86
 rapidocr-onnxruntime==1.4.4
 rank-bm25==0.2.2