diff --git a/pkgs/development/python-modules/langgraph-checkpoint-postgres/default.nix b/pkgs/development/python-modules/langgraph-checkpoint-postgres/default.nix
index ebd5eb24b6d0..8064aa620a5e 100644
--- a/pkgs/development/python-modules/langgraph-checkpoint-postgres/default.nix
+++ b/pkgs/development/python-modules/langgraph-checkpoint-postgres/default.nix
@@ -26,14 +26,14 @@
 
 buildPythonPackage rec {
   pname = "langgraph-checkpoint-postgres";
-  version = "2.0.19";
+  version = "2.0.21";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "langchain-ai";
     repo = "langgraph";
     tag = "checkpointpostgres==${version}";
-    hash = "sha256-8JNPKaaKDM7VROd1n9TDALN6yxKRz1CuAultBcqBMG0=";
+    hash = "sha256-hl1EBOtUkSfHGxsM+LOZPLSvkW7hdHS08klpvA7/Bd0=";
   };
 
   postgresqlTestSetupPost = ''