diff --git a/pkgs/development/compilers/dart/package-source-builders/rhttp/default.nix b/pkgs/development/compilers/dart/package-source-builders/rhttp/default.nix
index 15169165a146..41dd2fd0eff0 100644
--- a/pkgs/development/compilers/dart/package-source-builders/rhttp/default.nix
+++ b/pkgs/development/compilers/dart/package-source-builders/rhttp/default.nix
@@ -20,6 +20,7 @@ let
         _0_9_1 = "sha256-ZVl1nesepZnmOWeJPOgE6IDCokQm5FedbA5MBvr5S8c=";
         _0_9_6 = "sha256-vvzb+jNN5lmRrKJ3zqvORvdduqEHRmbp85L/9Zegh/E=";
         _0_9_8 = "sha256-cwb1wYVXOE5YABlMxUDt+OMlDpIlipqeNI7ZFAGHCqo=";
+        _0_10_0 = "sha256-2SpAj53XvZXKRpMzFXJGcx7E2TlMUD+ooHkFwg/9fe4=";
       }
       .${"_" + (lib.replaceStrings [ "." ] [ "_" ] version)} or (throw ''
         Unsupported version of pub 'rhttp': '${version}'