diff --git a/pyproject.toml b/pyproject.toml
index 863fa914..66d2dbb4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -73,7 +73,7 @@ dependencies = [
     'Jinja2==3.1.4',               # to generate LaTeX and Markdown files
     'phonenumbers==8.13.45',       # to validate phone numbers
     'email-validator==2.2.0',      # to validate email addresses
-    'pydantic==2.9.0',             # to validate and parse the input file
+    'pydantic==2.9.1',             # to validate and parse the input file
     'pydantic-extra-types==2.9.0', # to validate some extra types
     'ruamel.yaml==0.18.6',         # to parse YAML files
     'typer==0.12.5',               # to create the command-line interface