Switch to 1.4

scheinerman · scheinerman · commit 369b3cc04685 · 2020-07-30T11:00:33.000-04:00
diff --git a/.travis.yml b/.travis.yml
@@ -3,7 +3,7 @@ language: julia
 os:
   - linux
 julia:
-  - 1.3
+  - 1.4
 notifications:
   email: false
 git:
