diff --git a/.travis.yml b/.travis.yml
index cc553ba..6acbe65 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,7 @@
 language: perl
 perl:
+  - "5.20"
+  - "5.18"
   - "5.16"
   - "5.14"
   - "5.12"