diff --git a/Gemfile.lock b/Gemfile.lock
index 4692dc9..539917a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,19 +1,19 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activemodel (5.0.0.1)
-      activesupport (= 5.0.0.1)
-    activerecord (5.0.0.1)
-      activemodel (= 5.0.0.1)
-      activesupport (= 5.0.0.1)
-      arel (~> 7.0)
-    activesupport (5.0.0.1)
+    activemodel (5.2.8.1)
+      activesupport (= 5.2.8.1)
+    activerecord (5.2.8.1)
+      activemodel (= 5.2.8.1)
+      activesupport (= 5.2.8.1)
+      arel (>= 9.0)
+    activesupport (5.2.8.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (~> 0.7)
+      i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    arel (7.1.4)
-    concurrent-ruby (1.0.2)
+    arel (9.0.0)
+    concurrent-ruby (1.1.10)
     diff-lcs (1.2.5)
     fastreader (1.0.8)
       activerecord (>= 2.0.0)
@@ -27,18 +27,19 @@ GEM
     feed-normalizer (1.5.2)
       hpricot (>= 0.6)
       simple-rss (>= 1.1)
-    highline (1.7.8)
-    hoe (3.15.2)
-      rake (>= 0.8, < 12.0)
+    highline (2.0.3)
+    hoe (3.24.0)
+      rake (>= 0.8, < 15.0)
     hpricot (0.8.6)
-    i18n (0.7.0)
+    i18n (1.12.0)
+      concurrent-ruby (~> 1.0)
     mini_portile2 (2.1.0)
-    minitest (5.9.1)
+    minitest (5.15.0)
     nokogiri (1.6.8.1)
       mini_portile2 (~> 2.1.0)
     pdfkit (0.5.2)
     rack (1.6.4)
-    rake (11.3.0)
+    rake (13.0.6)
     rspec (3.5.0)
       rspec-core (~> 3.5.0)
       rspec-expectations (~> 3.5.0)
@@ -52,12 +53,12 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.5.0)
     rspec-support (3.5.0)
-    simple-rss (1.3.1)
-    sqlite3 (1.3.12)
+    simple-rss (1.3.3)
+    sqlite3 (1.4.4)
     sqlite3-ruby (1.3.3)
       sqlite3 (>= 1.3.3)
-    thread_safe (0.3.5)
-    tzinfo (1.2.2)
+    thread_safe (0.3.6)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
 
 PLATFORMS
@@ -66,12 +67,12 @@ PLATFORMS
 DEPENDENCIES
   fastreader
   nokogiri
-  pdfkit (= 0.5.2)
+  pdfkit (~> 0.5)
   rack (~> 1.1)
   rspec
 
 RUBY VERSION
-  ruby 2.4.5
+   ruby 2.4.5
 
 BUNDLED WITH
-  1.15.4
+   1.17.3