.travis.yml in rasti-db-1.4.0 vs .travis.yml in rasti-db-1.5.0

@@ -1,17 +1,15 @@
 language: ruby
 
 rvm:
-  - 2.0
   - 2.1
   - 2.2
   - 2.3
   - 2.4
   - 2.5
   - 2.6
   - 2.7
-  - jruby-9.1.7.0
-  - jruby-9.1.16.0
+  - jruby-9.2.9.0
   - ruby-head
   - jruby-head
 
 matrix:
   fast_finish: true
\ No newline at end of file