diff --git a/src/plugins/install.npm-spec.test.ts b/src/plugins/install.npm-spec.test.ts
index af81bb80920..eff92925f69 100644
--- a/src/plugins/install.npm-spec.test.ts
+++ b/src/plugins/install.npm-spec.test.ts
@@ -1072,7 +1072,9 @@ describe("installPluginFromNpmSpec", () => {
         return;
       }
       expect(result.pluginId).toBe(pluginId);
-      expect(warnings.some((warning) => warning.includes("installation blocked"))).toBe(false);
+      expect(warnings).not.toEqual(
+        expect.arrayContaining([expect.stringContaining("installation blocked")]),
+      );
       expectNpmInstallIntoRoot({
         calls: runCommandWithTimeoutMock.mock.calls,
         npmRoot,