diff --git a/apps/sim/trigger.config.ts b/apps/sim/trigger.config.ts
index 7966fdbf94a..5c2ae2d6cff 100644
--- a/apps/sim/trigger.config.ts
+++ b/apps/sim/trigger.config.ts
@@ -96,6 +96,15 @@ export default defineConfig({
     },
   },
   dirs: ['./background'],
+  /**
+   * Every file under `dirs` is imported as a task file at deploy time, so any
+   * test co-located there must be excluded or its top-level `vi.mock()` throws
+   * outside Vitest and fails the whole deploy. Setting this replaces the CLI's
+   * defaults (`*.test.*` and `*.spec.*`), which are restated here alongside
+   * the `*.integration.*` suffix used for suites that run against real
+   * Postgres/Redis, across every extension task discovery matches.
+   */
+  ignorePatterns: ['**/*.{test,spec,integration}.{ts,tsx,mts,cts,js,jsx,mjs,cjs}'],
   /**
    * Runs before any task run, in the run process. Marks the process so that
    * dispatch decisions further down the call graph stop inferring from