diff --git a/pkgs/tools/misc/esphome/default.nix b/pkgs/tools/misc/esphome/default.nix
index feeb7ad7583b..112841c0260b 100644
--- a/pkgs/tools/misc/esphome/default.nix
+++ b/pkgs/tools/misc/esphome/default.nix
@@ -16,13 +16,13 @@ let
 in
 with python.pkgs; buildPythonApplication rec {
   pname = "esphome";
-  version = "1.20.4";
+  version = "2021.8.0";
 
   src = fetchFromGitHub {
     owner = pname;
     repo = pname;
-    rev = "v${version}";
-    sha256 = "sha256-Z2/7J8F9o+ZY+7Q9bpAT79yHqUFyJu9usu4XI4PhpCI=";
+    rev = version;
+    sha256 = "sha256-yVqma5WRQTt5Vq7poqHexASc59xthYaNcz/kkefC7qI=";
   };
 
   patches = [