diff --git a/pkgs/development/python-modules/pydantic-ai-slim/default.nix b/pkgs/development/python-modules/pydantic-ai-slim/default.nix
index 1eeddfc39a13..b2c25e530313 100644
--- a/pkgs/development/python-modules/pydantic-ai-slim/default.nix
+++ b/pkgs/development/python-modules/pydantic-ai-slim/default.nix
@@ -20,14 +20,14 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "pydantic-ai-slim";
-  version = "1.84.1";
+  version = "1.86.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "pydantic";
     repo = "pydantic-ai";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-LMfRGmLr51DzgJO97I/mJvyrVYD9tsF9OkCfw0ABWfw=";
+    hash = "sha256-4kDZzotCty40undBQoRXIzAFBufPIj3QSvhDjlG+Y6E=";
   };
 
   sourceRoot = "${finalAttrs.src.name}/pydantic_ai_slim";
diff --git a/pkgs/development/python-modules/pydantic-graph/default.nix b/pkgs/development/python-modules/pydantic-graph/default.nix
index 66d55f15247b..3504354d1e8a 100644
--- a/pkgs/development/python-modules/pydantic-graph/default.nix
+++ b/pkgs/development/python-modules/pydantic-graph/default.nix
@@ -16,14 +16,14 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "pydantic-graph";
-  version = "1.84.1";
+  version = "1.86.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "pydantic";
     repo = "pydantic-ai";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-LMfRGmLr51DzgJO97I/mJvyrVYD9tsF9OkCfw0ABWfw=";
+    hash = "sha256-4kDZzotCty40undBQoRXIzAFBufPIj3QSvhDjlG+Y6E=";
   };
 
   sourceRoot = "${finalAttrs.src.name}/pydantic_graph";