diff --git a/.travis.yml b/.travis.yml
index 79957420..cb3fc612 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,6 +20,7 @@ install:
   - cpanm --notest Data::Dump
   - cpanm --notest Date::Manip
   - cpanm --notest Date::Parse
+  - cpanm --notest DateTime::Format::ISO8601
   - cpanm --notest Device::SerialPort
   - cpanm --notest FCGI::Client
   - cpanm --notest File::ReadBackwards