diff --git a/.travis.yml b/.travis.yml
index eff1331..967f416 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,6 @@ dist: trusty
 jobs:
   fast_finish: true
   allow_failures:
-    - php: "7.4"
     - php: "nightly"
     - name: "Php CS Fixer"
   include:
diff --git a/tests/LessSourceTest.php b/tests/LessSourceTest.php
index 4a22b29..225a0b5 100644
--- a/tests/LessSourceTest.php
+++ b/tests/LessSourceTest.php
@@ -6,6 +6,7 @@ use Minify_HTML_Helper;
 
 /**
  * @requires php < 7.3
+ * @see https://github.com/mrclay/minify/pull/685
  */
 class LessSourceTest extends TestCase
 {