--- a/Gemfile.lock	Sun Dec 09 02:39:33 2018 +0900
+++ b/Gemfile.lock	Fri May 31 09:45:02 2019 +0900
@@ -1,54 +1,61 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    actionpack (5.2.2)
-      actionview (= 5.2.2)
-      activesupport (= 5.2.2)
+    actionpack (5.2.3)
+      actionview (= 5.2.3)
+      activesupport (= 5.2.3)
       rack (~> 2.0)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.2.2)
-      activesupport (= 5.2.2)
+    actionview (5.2.3)
+      activesupport (= 5.2.3)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activesupport (5.2.2)
+    activesupport (5.2.3)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.5.2)
+    addressable (2.6.0)
       public_suffix (>= 2.0.2, < 4.0)
-    async (1.11.0)
+    async (1.17.1)
+      console (~> 1.0)
       nio4r (~> 2.3)
       timers (~> 4.1)
-    async-container (0.8.1)
+    async-container (0.10.2)
       async (~> 1.0)
       async-io (~> 1.4)
-    async-http (0.37.6)
-      async (~> 1.6)
-      async-io (~> 1.16)
-      http-protocol (~> 0.10)
-    async-io (1.17.2)
-      async (~> 1.3)
+      process-group
+    async-http (0.41.2)
+      async (~> 1.14)
+      async-io (~> 1.18)
+      protocol-http (~> 0.5.0)
+      protocol-http1 (~> 0.7.0)
+      protocol-http2 (~> 0.3.0)
+    async-io (1.23.1)
+      async (~> 1.14)
     buftok (0.2.0)
+    build-environment (1.10.1)
     builder (3.2.3)
-    concurrent-ruby (1.1.3)
+    concurrent-ruby (1.1.5)
+    console (1.2.4)
     crass (1.0.4)
     domain_name (0.5.20180417)
       unf (>= 0.0.5, < 1.0.0)
     equalizer (0.0.11)
-    erubi (1.7.1)
-    falcon (0.19.6)
-      async-container (~> 0.8.0)
-      async-http (~> 0.37.2)
-      async-io (~> 1.9)
-      http-protocol (~> 0.10.0)
+    erubi (1.8.0)
+    falcon (0.31.0)
+      async (~> 1.13)
+      async-container (~> 0.10.0)
+      async-http (~> 0.41.0)
+      async-io (~> 1.22)
+      build-environment (~> 1.6)
       localhost (~> 1.1)
       rack (>= 1.0)
-      samovar (~> 1.3)
+      samovar (~> 2.1)
     http (3.3.0)
       addressable (~> 2.3)
       http-cookie (~> 1.0)
@@ -57,15 +64,12 @@
     http-cookie (1.0.3)
       domain_name (~> 0.5)
     http-form_data (2.1.1)
-    http-hpack (0.1.1)
-    http-protocol (0.10.1)
-      http-hpack (~> 0.1.0)
     http_parser.rb (0.6.0)
     http_parser.rb (0.6.0-java)
-    i18n (1.1.1)
+    i18n (1.6.0)
       concurrent-ruby (~> 1.0)
     idn-ruby (0.1.0)
-    localhost (1.1.4)
+    localhost (1.1.6)
     loofah (2.2.3)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
@@ -73,21 +77,29 @@
     memoizable (0.4.2)
       thread_safe (~> 0.3, >= 0.3.1)
     method_source (0.9.2)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.4.0)
     minitest (5.11.3)
-    multipart-post (2.0.0)
+    multipart-post (2.1.1)
     naught (1.1.0)
-    newrelic_rpm (5.5.0.348)
+    newrelic_rpm (6.4.0.356)
     nio4r (2.3.1)
-    nokogiri (1.8.5)
-      mini_portile2 (~> 2.3.0)
-    nokogiri (1.8.5-java)
-    nokogiri (1.8.5-x86-mingw32)
-      mini_portile2 (~> 2.3.0)
-    public_suffix (3.0.3)
-    puma (3.12.0)
-    puma (3.12.0-java)
-    rack (2.0.6)
+    nokogiri (1.10.3)
+      mini_portile2 (~> 2.4.0)
+    nokogiri (1.10.3-java)
+    nokogiri (1.10.3-x86-mingw32)
+      mini_portile2 (~> 2.4.0)
+    process-group (1.1.0)
+    protocol-hpack (1.0.0)
+    protocol-http (0.5.0)
+    protocol-http1 (0.7.0)
+      protocol-http (~> 0.5)
+    protocol-http2 (0.3.0)
+      protocol-hpack (~> 1.0)
+      protocol-http (~> 0.2)
+    public_suffix (3.1.0)
+    puma (3.12.1)
+    puma (3.12.1-java)
+    rack (2.0.7)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails-dom-testing (2.0.3)
@@ -95,15 +107,14 @@
       nokogiri (>= 1.6)
     rails-html-sanitizer (1.0.4)
       loofah (~> 2.2, >= 2.2.2)
-    railties (5.2.2)
-      actionpack (= 5.2.2)
-      activesupport (= 5.2.2)
+    railties (5.2.3)
+      actionpack (= 5.2.3)
+      activesupport (= 5.2.3)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
-    rainbow (3.0.0)
     rake (12.3.2)
-    redis (4.0.3)
+    redis (4.1.2)
     redis-actionpack (5.0.2)
       actionpack (>= 4.0, < 6)
       redis-rack (>= 1, < 3)
@@ -120,14 +131,14 @@
       redis-store (>= 1.2, < 2)
     redis-store (1.6.0)
       redis (>= 2.2, < 5)
-    samovar (1.9.1)
+    samovar (2.1.1)
+      console (~> 1.0)
       mapping (~> 1.0)
-      rainbow (>= 2.0, < 4.0)
     simple_oauth (0.3.1)
     thor (0.20.3)
     thread_safe (0.3.6)
     thread_safe (0.3.6-java)
-    timers (4.2.0)
+    timers (4.3.0)
     twitter (6.2.0)
       addressable (~> 2.3)
       buftok (~> 0.2.0)
@@ -147,8 +158,7 @@
     unf (0.1.4)
       unf_ext
     unf (0.1.4-java)
-    unf_ext (0.0.7.5)
-    unf_ext (0.0.7.5-x86-mingw32)
+    unf_ext (0.0.7.6)
 
 PLATFORMS
   java
@@ -169,4 +179,4 @@
   twitter-text
 
 BUNDLED WITH
-   1.17.1
+   1.17.2