diff --git a/pkgs/development/python-modules/pydantic-yaml/default.nix b/pkgs/development/python-modules/pydantic-yaml/default.nix
index e1c980e55274..178a3313034b 100644
--- a/pkgs/development/python-modules/pydantic-yaml/default.nix
+++ b/pkgs/development/python-modules/pydantic-yaml/default.nix
@@ -13,7 +13,7 @@
 
 buildPythonPackage rec {
   pname = "pydantic-yaml";
-  version = "1.5.1";
+  version = "1.6.0";
 
   pyproject = true;
 
@@ -21,7 +21,7 @@ buildPythonPackage rec {
     owner = "NowanIlfideme";
     repo = "pydantic-yaml";
     tag = "v${version}";
-    hash = "sha256-UOehghNjPymuZtGp1yM5T15M6/XmK1rgTN9uVCVOst4=";
+    hash = "sha256-n5QWVHgYAg+Ad7Iv6CBSRQcl8lv4ZtcFMiC2ZHyi414=";
   };
 
   postPatch = ''