diff --git a/.circleci/config.yml b/.circleci/config.yml
index 85ea5f7f..8194ba63 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -44,7 +44,7 @@ jobs:
   test-odm:
     <<: *shared
     docker:
-      - image: circleci/ruby:2.3.7
+      - image: circleci/ruby:2.3.8
         environment:
           BUNDLE_JOBS: 3
           BUNDLE_RETRY: 3
diff --git a/.ruby-version b/.ruby-version
index 00355e29..bc4abe86 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.3.7
+2.3.8
diff --git a/Gemfile b/Gemfile
index 5431064a..2b296df6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
-ruby '2.3.7'
+ruby '2.3.8'
 
 # Distribute your app as a gem
 # gemspec
diff --git a/Gemfile.lock b/Gemfile.lock
index af874bd0..a77d4412 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,13 +1,13 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actionview (5.2.1)
-      activesupport (= 5.2.1)
+    actionview (5.2.2)
+      activesupport (= 5.2.2)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activesupport (5.2.1)
+    activesupport (5.2.2)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
@@ -25,7 +25,7 @@ GEM
     cf-app-utils (0.4)
     coderay (1.1.0)
     columnize (0.9.0)
-    concurrent-ruby (1.1.3)
+    concurrent-ruby (1.1.4)
     crass (1.0.4)
     diff-lcs (1.2.5)
     dotenv (2.0.2)
@@ -38,7 +38,7 @@ GEM
       faraday
       multi_json
     enumerable-lazy (0.0.2)
-    erubi (1.7.1)
+    erubi (1.8.0)
     erubis (2.7.0)
     ethon (0.10.1)
       ffi (>= 1.3.0)
@@ -62,7 +62,7 @@ GEM
     method_source (0.8.2)
     mime-types (2.99.3)
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.4.0)
     minitest (5.11.3)
     moneta (0.8.1)
     multi_json (1.12.1)
@@ -70,8 +70,8 @@ GEM
     mustermann19 (0.4.4)
       enumerable-lazy
     newrelic_rpm (3.18.1.330)
-    nokogiri (1.8.5)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.10.1)
+      mini_portile2 (~> 2.4.0)
     oj (2.12.13)
     padrino (0.13.3.4)
       padrino-admin (= 0.13.3.4)
@@ -197,7 +197,7 @@ DEPENDENCIES
   typhoeus
 
 RUBY VERSION
-   ruby 2.3.7p456
+   ruby 2.3.8p459
 
 BUNDLED WITH
-   1.16.2
+   1.17.1