diff --git a/.changeset/smooth-lies-thank.md b/.changeset/smooth-lies-thank.md
new file mode 100644
index 00000000000..ca6a7ee86dc
--- /dev/null
+++ b/.changeset/smooth-lies-thank.md
@@ -0,0 +1,5 @@
+---
+"app-builder-lib": patch
+---
+
+fix: don't notarize mas builds
diff --git a/packages/app-builder-lib/src/macPackager.ts b/packages/app-builder-lib/src/macPackager.ts
index b4faf406a7f..b2de04bb19e 100644
--- a/packages/app-builder-lib/src/macPackager.ts
+++ b/packages/app-builder-lib/src/macPackager.ts
@@ -331,7 +331,9 @@ export default class MacPackager extends PlatformPackager<MacConfiguration> {
       await this.dispatchArtifactCreated(artifactPath, null, Arch.x64, this.computeSafeArtifactName(artifactName, "pkg", arch, true, this.platformSpecificBuildOptions.defaultArch))
     }
 
-    await this.notarizeIfProvided(appPath)
+if (!isMas) { 
+   await this.notarizeIfProvided(appPath)
+}
     return true
   }