Update CI configurations

.circleci/config.yml

@@ -81,7 +81,7 @@ jobs:
             ./script/ci
   "jruby-9.1":
     docker:
-       - image: circleci/jruby:9.1.17.0
+       - image: circleci/jruby:9.1-jdk
     working_directory: ~/hanami-utils
     steps:
       - checkout

.travis.yml

@@ -1,19 +1,22 @@
 language: ruby
 sudo: false
 cache: bundler
+before_script:
+  - gem update --system
 script: ./script/ci
 rvm:
-  - 2.3.5
-  - 2.4.2
-  - 2.5.0
+  - 2.4.4
+  - 2.3.7
+  - 2.5.1
+  - jruby-9.1.9.0
   - ruby-head
-  - jruby-9.1.13.0
   - jruby-head
 
 matrix:
   allow_failures:
     - rvm: ruby-head
     - rvm: jruby-head
+    - rvm: jruby-9.1.9.0
 
 notifications:
   webhooks: