diff --git a/pkgs/applications/blockchains/polkadot/default.nix b/pkgs/applications/blockchains/polkadot/default.nix
index 656c5974bead..54e45a432f71 100644
--- a/pkgs/applications/blockchains/polkadot/default.nix
+++ b/pkgs/applications/blockchains/polkadot/default.nix
@@ -7,16 +7,16 @@
 }:
 rustPlatform.buildRustPackage rec {
   pname = "polkadot";
-  version = "0.9.9-1";
+  version = "0.9.10";
 
   src = fetchFromGitHub {
     owner = "paritytech";
     repo = "polkadot";
     rev = "v${version}";
-    sha256 = "sha256-EmnrwBMHb9jpEZAG393yyMaFRRQJ6YYDRvsp+ATT7MY=";
+    sha256 = "1iBA7R63g0UOuCmnFONc9j/7jfcHA54jJ327AL/aPIE=";
   };
 
-  cargoHash = "sha256-WzsaUrqe7F4x+ShqG14kq78MTSWIxIMRa3pdr3RXrwk=";
+  cargoSha256 = "1ysbyv323qmpswbnd2lvisrwnk30l4zvcidh866nrk6b6jqjag42";
 
   nativeBuildInputs = [ clang ];