diff --git a/.travis.yml b/.travis.yml
index 10f2c58..7e3d24a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,10 +6,10 @@ jobs:
       julia: 1.0
       env: TESTCMD="xvfb-run julia"
     - os: linux
-      julia: 1.3
+      julia: 1.4
       env: TESTCMD="xvfb-run julia"
     - os: linux
-      julia: 1.4
+      julia: 1.5
       env: TESTCMD="xvfb-run julia"
     - os: linux
       julia: nightly
@@ -18,13 +18,13 @@ jobs:
       julia: 1.0
       env: TESTCMD="julia"
     - os: osx
-      julia: 1.4
+      julia: 1.5
       env: TESTCMD="julia"
     - os: osx
       julia: nightly
       env: TESTCMD="julia"
     - stage: "Documentation"
-      julia: 1.4
+      julia: 1.5
       os: linux
       script:
         - julia --project=docs/ -e 'using Pkg; Pkg.develop(PackageSpec(path=pwd()));