diff --git a/.travis.yml b/.travis.yml
index 139d907..be4afd1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,12 @@
 language: java
 jdk: 
  - openjdk7
-sudo: false
+sudo: true
+
+before_install:
+ - sudo dpkg --purge --force-depends ca-certificates-java
+ - sudo apt-get install ca-certificates-java
+
   
 script: 
  - cd cn.ieclipse.aorm.core