diff --git a/pkgs/development/python-modules/langchain-core/default.nix b/pkgs/development/python-modules/langchain-core/default.nix
index e7c3361e7158..bab510205cff 100644
--- a/pkgs/development/python-modules/langchain-core/default.nix
+++ b/pkgs/development/python-modules/langchain-core/default.nix
@@ -17,7 +17,7 @@
 
 buildPythonPackage rec {
   pname = "langchain-core";
-  version = "0.1.42";
+  version = "0.1.43";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -25,7 +25,7 @@ buildPythonPackage rec {
   src = fetchPypi {
     pname = "langchain_core";
     inherit version;
-    hash = "sha256-QHUb9g6l2OKy7+ZSkNtDRxfuODSHDAAuQOKBHwnYFOY=";
+    hash = "sha256-SZEz+two7899JDBiNlIVGAgLsQ/Yv290Jt5KK78q67U=";
   };
 
   pythonRelaxDeps = [