Update API version matrix
diff --git a/.travis.yml b/.travis.yml
index 2c6c5df..0ff656d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,7 +10,7 @@
     - API_VERSION=2.8.3
     - API_VERSION=2.8.4
     - API_VERSION=2.8.5
-    - API_VERSION=2.9-rc1
+    - API_VERSION=2.8.6
 
 install: true