diff --git a/.sync.yml b/.sync.yml
index 7a83914b..8dcb65cf 100644
--- a/.sync.yml
+++ b/.sync.yml
@@ -2,7 +2,6 @@
 .travis.yml:
   secure: 'Hw0ScFZ+tANSuxXvkQlHOtbnV+9O6FyIxY4e8ZuNiE+4E045olgGjqus+ffo0MoHOHzCPPbThF107yQIXXHCwIy3wzOVIjQ7KQ/yVeamCl4K9A4AFP1Pcr/zMTRdK16zrgxBH+6wDkjSxHGonT8AyUKBrT7AeET+pqxwVHvHCfo='
   docker_sets:
-    - set: ubuntu1804-64
     - set: ubuntu2004-64
     - set: debian10-64
 Gemfile:
diff --git a/metadata.json b/metadata.json
index 1ba68453..ed50473b 100644
--- a/metadata.json
+++ b/metadata.json
@@ -30,7 +30,6 @@
     {
       "operatingsystem": "Ubuntu",
       "operatingsystemrelease": [
-        "18.04",
         "20.04"
       ]
     },