diff --git a/app/assets/javascripts/discourse/tests/integration/components/image-uploader-test.js b/app/assets/javascripts/discourse/tests/integration/components/image-uploader-test.js
index 02c06a50540..b92a9abc220 100644
--- a/app/assets/javascripts/discourse/tests/integration/components/image-uploader-test.js
+++ b/app/assets/javascripts/discourse/tests/integration/components/image-uploader-test.js
@@ -38,7 +38,7 @@ discourseModule("Integration | Component | image-uploader", function (hooks) {
       await click(".image-uploader-lightbox-btn");
 
       assert.equal(
-        $(".mfp-container").length,
+        document.querySelectorAll(".mfp-container").length,
         1,
         "it displays the image lightbox"
       );
diff --git a/app/assets/javascripts/discourse/tests/integration/components/uppy-image-uploader-test.js b/app/assets/javascripts/discourse/tests/integration/components/uppy-image-uploader-test.js
index d43c7511638..1a81bb14457 100644
--- a/app/assets/javascripts/discourse/tests/integration/components/uppy-image-uploader-test.js
+++ b/app/assets/javascripts/discourse/tests/integration/components/uppy-image-uploader-test.js
@@ -40,7 +40,7 @@ discourseModule(
         await click(".image-uploader-lightbox-btn");
 
         assert.equal(
-          $(".mfp-container").length,
+          document.querySelectorAll(".mfp-container").length,
           1,
           "it displays the image lightbox"
         );