diff --git a/.travis.yml b/.travis.yml
index cd5590c..78dda5f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,9 @@ rvm:
 addons:
   postgresql: "9.3"
 
+before_install:
+  - if ruby --version | cut -d ' ' -f 2 | grep -q 2.1.5p273 ; then gem update --system 2.4.8; fi
+
 before_script:
   - git clone https://github.com/mezuro/kalibro_install.git -b v4.2 kalibro_install
   - export KALIBRO_CONFIGURATIONS_START=0
--
libgit2 0.21.2