diff --git a/.travis.yml b/.travis.yml
index 043439c..9f86e16 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,8 +3,6 @@ os:
   - linux
   - osx
 julia:
-  - 0.4
-  - 0.5
   - 0.6
   - nightly
 notifications:
diff --git a/REQUIRE b/REQUIRE
index d5d6467..137767a 100644
--- a/REQUIRE
+++ b/REQUIRE
@@ -1 +1 @@
-julia 0.4
+julia 0.6