diff --git a/requirements/base.txt b/requirements/base.txt
index 166ea7284..8cb7f15e9 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -50,7 +50,7 @@ pdf2image
 tiktoken==0.12.0  # https://github.com/openai/tiktoken
 openai==1.102.0  # https://github.com/openai/openai-python
 pytesseract
-pydantic-ai==0.2.*
+pydantic-ai==1.39.*
 spacy
 pdfplumber>=0.10.0  # https://github.com/jsvine/pdfplumber - PDF token extraction
 shapely>=2.0.0  # https://github.com/shapely/shapely - spatial operations for bbox intersection