diff --git a/.travis.yml b/.travis.yml
index 9a3f1f69..eec9ed73 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -63,11 +63,8 @@ matrix:
         - postgresql
     - php: 7.3
       env: PREFER_LOWEST="" DB=mysql NO_WEAKREF=1
-    - php: "7.4snapshot"
-      env: PREFER_LOWEST="" DB=mysql NO_WEAKREF=1
   allow_failures:
     - php: 7.3 # 7.3 allowed to fail due to an issue with greenlion/PHP-SQL-Parser: https://github.com/greenlion/PHP-SQL-Parser/pull/304
-    - php: "7.4snapshot"
     - php: 7.1
       env: PREFER_LOWEST="" DB=oracle PHPUNITFILE="-c phpunit.oracle.xml"
     - php: 7.1
diff --git a/phpstan.neon b/phpstan.neon
index fbdbc929..95ac25dd 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -12,6 +12,9 @@ parameters:
      - "/Parameter #. \\$types of method Doctrine\\\\DBAL\\\\Connection::.*() expects array<int|string>, array<int, Doctrine\\\\DBAL\\\\Types\\\\Type> given./"
      - "#Method TheCodingMachine\\\\TDBM\\\\Schema\\\\ForeignKey::.*() should return .* but returns array<string>|string.#"
      - '#Method TheCodingMachine\\TDBM\\NativeWeakrefObjectStorage::get\(\) should return TheCodingMachine\\TDBM\\DbRow\|null but returns object\|null.#'
+     -
+             message: '#WeakRef#'
+             path: src/WeakrefObjectStorage.php
      -
         message: '#Result of && is always false.#'
         path: src/Test/Dao/Bean/Generated/ArticleBaseBean.php