diff --git a/authbridge/requirements.txt b/authbridge/requirements.txt
index 2bcd9f6d..1140d647 100644
--- a/authbridge/requirements.txt
+++ b/authbridge/requirements.txt
@@ -4,6 +4,6 @@ PyYAML>=6.0.3
 langgraph==1.2.11
 langchain-core==1.6.0
 langchain-openai==1.6.0
-pydantic==2.13.4
+pydantic==2.13.5
 
 python-dotenv>=1.2.3