diff --git a/test/integration-boot.mjs b/test/integration-boot.mjs
index bc4b7e807..45827f628 100644
--- a/test/integration-boot.mjs
+++ b/test/integration-boot.mjs
@@ -24,14 +24,14 @@ async function runTests(results) {
     random: false,
     spec_dir: "integration",
     spec_files: [
-      "accessibility_spec.js",
-      "annotation_spec.js",
-      "copy_paste_spec.js",
-      "find_spec.js",
-      "freetext_editor_spec.js",
-      "ink_editor_spec.js",
-      "scripting_spec.js",
-      "stamp_editor_spec.js",
+      "accessibility_spec.mjs",
+      "annotation_spec.mjs",
+      "copy_paste_spec.mjs",
+      "find_spec.mjs",
+      "freetext_editor_spec.mjs",
+      "ink_editor_spec.mjs",
+      "scripting_spec.mjs",
+      "stamp_editor_spec.mjs",
     ],
   });
 
diff --git a/test/integration/accessibility_spec.js b/test/integration/accessibility_spec.mjs
similarity index 100%
rename from test/integration/accessibility_spec.js
rename to test/integration/accessibility_spec.mjs
diff --git a/test/integration/annotation_spec.js b/test/integration/annotation_spec.mjs
similarity index 100%
rename from test/integration/annotation_spec.js
rename to test/integration/annotation_spec.mjs
diff --git a/test/integration/copy_paste_spec.js b/test/integration/copy_paste_spec.mjs
similarity index 100%
rename from test/integration/copy_paste_spec.js
rename to test/integration/copy_paste_spec.mjs
diff --git a/test/integration/find_spec.js b/test/integration/find_spec.mjs
similarity index 100%
rename from test/integration/find_spec.js
rename to test/integration/find_spec.mjs
diff --git a/test/integration/freetext_editor_spec.js b/test/integration/freetext_editor_spec.mjs
similarity index 100%
rename from test/integration/freetext_editor_spec.js
rename to test/integration/freetext_editor_spec.mjs
diff --git a/test/integration/ink_editor_spec.js b/test/integration/ink_editor_spec.mjs
similarity index 100%
rename from test/integration/ink_editor_spec.js
rename to test/integration/ink_editor_spec.mjs
diff --git a/test/integration/scripting_spec.js b/test/integration/scripting_spec.mjs
similarity index 100%
rename from test/integration/scripting_spec.js
rename to test/integration/scripting_spec.mjs
diff --git a/test/integration/stamp_editor_spec.js b/test/integration/stamp_editor_spec.mjs
similarity index 100%
rename from test/integration/stamp_editor_spec.js
rename to test/integration/stamp_editor_spec.mjs
diff --git a/test/integration/test_utils.js b/test/integration/test_utils.mjs
similarity index 100%
rename from test/integration/test_utils.js
rename to test/integration/test_utils.mjs