diff --git a/main.js b/main.js
index 7a93485..6c1e96b 100644
--- a/main.js
+++ b/main.js
@@ -9,9 +9,9 @@ const crypto = require('crypto');
 const assert = require('assert').strict;
 const { hashElement } = require('folder-hash');
 
-const inst_version = '2022-06-03';
+const inst_version = '2022-09-04';
 const inst_url = `https://github.com/msys2/msys2-installer/releases/download/${inst_version}/msys2-base-x86_64-${inst_version.replace(/-/g, '')}.sfx.exe`;
-const checksum = '0694bf6661aa9dae8338be87b633ae9ac20c68d593cc17658a1dffe6291098bf';
+const checksum = 'bb92718bce932398a2e236d60c53ef35c3bc9a96999a26dd5814e66a2f4baf1f';
 // see https://github.com/msys2/setup-msys2/issues/61
 const INSTALL_CACHE_ENABLED = false;
 const CACHE_FLUSH_COUNTER = 0;