diff --git a/pkgs/development/python-modules/grpcio/default.nix b/pkgs/development/python-modules/grpcio/default.nix
index 89c0a800d1a4..f7f656a3f480 100644
--- a/pkgs/development/python-modules/grpcio/default.nix
+++ b/pkgs/development/python-modules/grpcio/default.nix
@@ -18,12 +18,12 @@
 # nixpkgs-update: no auto update
 buildPythonPackage rec {
   pname = "grpcio";
-  version = "1.76.0";
+  version = "1.78.0";
   pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-e+eDiNbaGiXA1exQZSPbWLGL4i2cN9jToywIvkmHvXM=";
+    hash = "sha256-c4K5UYlUbzdcF09TpfqHPO+RxLgAX6oFzFs77qnE8cU=";
   };
 
   outputs = [