diff --git a/src/main.ts b/src/main.ts
index d3fb857df..ddd606038 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -62,7 +62,10 @@ export async function run() {
     core.debug(`add bin ${added}`);
 
     const goPath = await io.which('go');
-    const goVersion = (cp.execSync(`${goPath} version`) || '').toString();
+    // run `go version` with the bundled Go toolchain to avoid potentially
+    // downloading one into the cache
+    const goVersion = (cp.execSync(`${goPath} version`) || '',
+    {env: {...process.env, GOTOOLCHAIN: 'local'}}).toString();
 
     if (cache && isCacheFeatureAvailable()) {
       const packageManager = 'default';