diff --git a/.travis.yml b/.travis.yml
index 68cd2f0d3..4966c8f06 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,9 @@ after_success:
 
 jobs:
   include:
+    - os: linux
+      dist: focal
+      node_js: '15'
     - os: linux
       dist: focal
       node_js: '14'
@@ -14,6 +17,9 @@ jobs:
     - os: linux
       dist: focal
       node_js: '10'
+    - os: linux
+      dist: bionic
+      node_js: '15'
     - os: linux
       dist: bionic
       node_js: '14'
@@ -23,12 +29,17 @@ jobs:
     - os: linux
       dist: bionic
       node_js: '10'
+    - os: windows
+      node_js: '15'
     - os: windows
       node_js: '14'
     - os: windows
       node_js: '12'
     - os: windows
       node_js: '10'
+    - os: osx
+      osx_image: xcode12
+      node_js: '15'
     - os: osx
       osx_image: xcode12
       node_js: '14'