diff --git a/.travis.yml b/.travis.yml
index 4bf7acb..e599d05 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,9 @@ language: python
 python: 3.7
 sudo: required
 
+cache:
+    apt: true
+
 before_install:
 - export TZ=Asia/Shanghai
 - mkdir dist -p