diff --git a/Gemfile b/Gemfile
index e003690b5cfea3e7329cb8a958aedd6db51e164f..c8af47afb8363314a4fcd1f5027c8c525d02c3e6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -34,7 +34,7 @@ gem 'omniauth-twitter', '~> 1.4.0'
 gem 'pagy', '~> 3.11.0'
 gem 'pluck_to_hash', '~> 1.0.2'
 gem 'puma', '~> 4.3.11'
-gem 'rails', '~> 5.2.6'
+gem 'rails', '~> 5.2.6.3'
 gem 'random_password', '~> 0.1.1'
 gem "recaptcha", '~> 5.7.0'
 gem 'redcarpet', '~> 3.5.1'
diff --git a/Gemfile.lock b/Gemfile.lock
index 56cf2aadefd9cc5d20cf19f6fefd04e2011e1661..f714f3dbde18a0e93881ba465f102e9907febb3f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -25,43 +25,43 @@ GEM
   specs:
     action-cable-testing (0.6.1)
       actioncable (>= 5.0)
-    actioncable (5.2.6)
-      actionpack (= 5.2.6)
+    actioncable (5.2.6.3)
+      actionpack (= 5.2.6.3)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
-    actionmailer (5.2.6)
-      actionpack (= 5.2.6)
-      actionview (= 5.2.6)
-      activejob (= 5.2.6)
+    actionmailer (5.2.6.3)
+      actionpack (= 5.2.6.3)
+      actionview (= 5.2.6.3)
+      activejob (= 5.2.6.3)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.2.6)
-      actionview (= 5.2.6)
-      activesupport (= 5.2.6)
+    actionpack (5.2.6.3)
+      actionview (= 5.2.6.3)
+      activesupport (= 5.2.6.3)
       rack (~> 2.0, >= 2.0.8)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.2.6)
-      activesupport (= 5.2.6)
+    actionview (5.2.6.3)
+      activesupport (= 5.2.6.3)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.2.6)
-      activesupport (= 5.2.6)
+    activejob (5.2.6.3)
+      activesupport (= 5.2.6.3)
       globalid (>= 0.3.6)
-    activemodel (5.2.6)
-      activesupport (= 5.2.6)
-    activerecord (5.2.6)
-      activemodel (= 5.2.6)
-      activesupport (= 5.2.6)
+    activemodel (5.2.6.3)
+      activesupport (= 5.2.6.3)
+    activerecord (5.2.6.3)
+      activemodel (= 5.2.6.3)
+      activesupport (= 5.2.6.3)
       arel (>= 9.0)
-    activestorage (5.2.6)
-      actionpack (= 5.2.6)
-      activerecord (= 5.2.6)
+    activestorage (5.2.6.3)
+      actionpack (= 5.2.6.3)
+      activerecord (= 5.2.6.3)
       marcel (~> 1.0.0)
-    activesupport (5.2.6)
+    activesupport (5.2.6.3)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
@@ -105,7 +105,7 @@ GEM
     byebug (11.1.3)
     cancancan (2.3.0)
     childprocess (4.0.0)
-    concurrent-ruby (1.1.8)
+    concurrent-ruby (1.1.9)
     coveralls (0.8.23)
       json (>= 1.8, < 3)
       simplecov (~> 0.16.1)
@@ -142,8 +142,8 @@ GEM
     ffi (1.15.0)
     font-awesome-sass (5.9.0)
       sassc (>= 1.11)
-    globalid (0.4.2)
-      activesupport (>= 4.2.0)
+    globalid (1.0.0)
+      activesupport (>= 5.0)
     google-apis-core (0.3.0)
       addressable (~> 2.5, >= 2.5.1)
       googleauth (~> 0.14)
@@ -184,7 +184,7 @@ GEM
     hiredis (0.6.3)
     http_accept_language (2.1.1)
     httpclient (2.8.3)
-    i18n (1.8.10)
+    i18n (1.10.0)
       concurrent-ruby (~> 1.0)
     i18n-language-mapping (0.1.3.1)
     jbuilder (2.11.2)
@@ -211,17 +211,17 @@ GEM
       activesupport (>= 4)
       railties (>= 4)
       request_store (~> 1.0)
-    loofah (2.9.1)
+    loofah (2.15.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
-    marcel (1.0.1)
+    marcel (1.0.2)
     memoist (0.16.2)
     method_source (1.0.0)
-    mini_mime (1.1.0)
+    mini_mime (1.1.2)
     mini_portile2 (2.8.0)
-    minitest (5.14.4)
+    minitest (5.15.0)
     msgpack (1.4.2)
     multi_json (1.15.0)
     multi_xml (0.6.0)
@@ -297,18 +297,18 @@ GEM
       rack (>= 2.1.0)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
-    rails (5.2.6)
-      actioncable (= 5.2.6)
-      actionmailer (= 5.2.6)
-      actionpack (= 5.2.6)
-      actionview (= 5.2.6)
-      activejob (= 5.2.6)
-      activemodel (= 5.2.6)
-      activerecord (= 5.2.6)
-      activestorage (= 5.2.6)
-      activesupport (= 5.2.6)
+    rails (5.2.6.3)
+      actioncable (= 5.2.6.3)
+      actionmailer (= 5.2.6.3)
+      actionpack (= 5.2.6.3)
+      actionview (= 5.2.6.3)
+      activejob (= 5.2.6.3)
+      activemodel (= 5.2.6.3)
+      activerecord (= 5.2.6.3)
+      activestorage (= 5.2.6.3)
+      activesupport (= 5.2.6.3)
       bundler (>= 1.3.0)
-      railties (= 5.2.6)
+      railties (= 5.2.6.3)
       sprockets-rails (>= 2.0.0)
     rails-controller-testing (1.0.5)
       actionpack (>= 5.0.1.rc1)
@@ -317,16 +317,16 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.3.0)
+    rails-html-sanitizer (1.4.2)
       loofah (~> 2.3)
-    railties (5.2.6)
-      actionpack (= 5.2.6)
-      activesupport (= 5.2.6)
+    railties (5.2.6.3)
+      actionpack (= 5.2.6.3)
+      activesupport (= 5.2.6.3)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
     rainbow (3.0.0)
-    rake (13.0.3)
+    rake (13.0.6)
     random_password (0.1.1)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
@@ -405,9 +405,9 @@ GEM
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
-    sprockets-rails (3.2.2)
-      actionpack (>= 4.0)
-      activesupport (>= 4.0)
+    sprockets-rails (3.4.2)
+      actionpack (>= 5.2)
+      activesupport (>= 5.2)
       sprockets (>= 3.0.0)
     sqlite3 (1.3.13)
     swd (1.2.0)
@@ -418,7 +418,7 @@ GEM
     syslog_protocol (0.9.2)
     term-ansicolor (1.7.1)
       tins (~> 1.0)
-    thor (1.1.0)
+    thor (1.2.1)
     thread_safe (0.3.6)
     tilt (2.0.10)
     tins (1.28.0)
@@ -453,7 +453,7 @@ GEM
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)
     webrick (1.7.0)
-    websocket-driver (0.7.3)
+    websocket-driver (0.7.5)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
     xml-simple (1.1.8)
@@ -497,7 +497,7 @@ DEPENDENCIES
   pg (~> 0.18)
   pluck_to_hash (~> 1.0.2)
   puma (~> 4.3.11)
-  rails (~> 5.2.6)
+  rails (~> 5.2.6.3)
   rails-controller-testing (~> 1.0)
   random_password (~> 0.1.1)
   recaptcha (~> 5.7.0)