diff --git a/.travis.yml b/.travis.yml
index 310c332e9..3e8560e2d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,9 +6,9 @@ os: linux
 
 env: 
   matrix: 
-     - CONDA_PY=3.6
-     - CONDA_PY=3.7
-     - CONDA_PY=3.8
+     - CONDA_PY="3.6"
+     - CONDA_PY="3.7"
+     - CONDA_PY="3.8"
 
 
 dist: trusty