diff --git a/.travis.yml b/.travis.yml
index 271d12e4..d728e816 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,8 +21,7 @@ rvm:
   - 2.6.0
   - 2.6.3
   - rbx
-  # Travis's own rvm installer is failing on JRuby builds, TODO: reenable when fixed.
-  # - jruby-9.1.9.0
+  - jruby-9.1.9.0
 
   #
   # # About legacy JRuby