diff --git a/.travis.yml b/.travis.yml
index f4a9eb3..a52abb0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,14 +1,16 @@
 language: go
 
+sudo: false
+
 go:
   - 1.3
-  - 1.3.1
+  - 1.4
   - tip
 
 install:
   - go get github.com/badgerodon/peg
   - go get github.com/barakmich/glog
-  - go get github.com/cznic/mathutil
+  - git clone https://github.com/cznic/mathutil -b go1.4 $HOME/gopath/src/github.com/cznic/mathutil
   - go get github.com/julienschmidt/httprouter
   - go get github.com/petar/GoLLRB/llrb
   - go get github.com/peterh/liner