diff --git a/README.md b/README.md
index 0e3ee21..2f1cc40 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ Audited & minimal JS implementation of Salsa20, ChaCha and AES.
 - 💼 AES: ECB, CBC, CTR, CFB, GCM, SIV (nonce misuse-resistant), AESKW, AESKWP
 - 💃 Salsa20, ChaCha, XSalsa20, XChaCha, ChaCha8, ChaCha12, Poly1305
 - 🥈 Two AES implementations: pure JS or friendly wrapper around webcrypto
-- 🪶 53KB (9KB gzipped) for everything, 7KB (3KB gzipped) for ChaCha build
+- 🪶 29KB (11KB gzipped) for everything, 7KB (3KB gzipped) for ChaCha build
 
 Take a glance at [GitHub Discussions](https://github.com/paulmillr/noble-ciphers/discussions) for questions and support.
 
diff --git a/build/package.json b/build/package.json
index 3e29e63..be858fb 100644
--- a/build/package.json
+++ b/build/package.json
@@ -10,6 +10,7 @@
   },
   "scripts": {
     "build:release": "npx esbuild --bundle input.js --outfile=`npx jsbt outfile` --global-name=`npx jsbt global`",
-    "build:min": "npx esbuild --minify --bundle input.js --outfile=`npx jsbt outfile` --global-name=`npx jsbt global`"
+    "build:min": "npx esbuild --minify --bundle input.js --outfile=`npx jsbt outfile` --global-name=`npx jsbt global`",
+    "build:gzip": "gzip -c8 `npx jsbt outfile` > `npx jsbt outfile`.gz"
   }
 }