diff --git a/pkgs/development/tools/misc/grpc-client-cli/default.nix b/pkgs/development/tools/misc/grpc-client-cli/default.nix
index 5e2e50c7b27f..19cc8803cee4 100644
--- a/pkgs/development/tools/misc/grpc-client-cli/default.nix
+++ b/pkgs/development/tools/misc/grpc-client-cli/default.nix
@@ -2,16 +2,16 @@
 
 buildGoModule rec {
   pname = "grpc-client-cli";
-  version = "1.20.2";
+  version = "1.20.3";
 
   src = fetchFromGitHub {
     owner = "vadimi";
     repo = "grpc-client-cli";
     rev = "v${version}";
-    sha256 = "sha256-CD+p/Au+MVOV93VPQL2uD8DNKl3XfoJhOjdKcx8DFwQ=";
+    sha256 = "sha256-aPmHvi81jqRKO3aY6bZ9bMJmk/HZVl/8MAUZN3QJByQ=";
   };
 
-  vendorHash = "sha256-e8lz7IrGjx7oXLuNuIhwHW2IP4jfR9XB4HVDjpeH7/w=";
+  vendorHash = "sha256-ruC/JE4+ftkzmgDxg2bRxTszjBtDtKQQGvyFD9H0O3I=";
 
   meta = with lib; {
     description = "generic gRPC command line client";