diff --git a/Gemfile.lock b/Gemfile.lock
index 4790149..51c8aee 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -15,21 +15,17 @@ GEM
   specs:
     backports (3.14.0)
     concurrent-ruby (1.1.5)
-    domain_name (0.5.20180417)
-      unf (>= 0.0.5, < 1.0.0)
-    http-cookie (1.0.3)
-      domain_name (~> 0.5)
     i18n (1.6.0)
       concurrent-ruby (~> 1.0)
     irb (1.0.0)
     macaddr (1.7.1)
       systemu (~> 2.6.2)
-    mime-types (3.2.2)
-      mime-types-data (~> 3.2015)
-    mime-types-data (3.2019.0331)
+    mime-types (2.99.3)
     multi_json (1.13.1)
     netrc (0.11.0)
-    puma (3.8.2)
+    nio4r (2.5.7)
+    puma (5.3.1)
+      nio4r (~> 2.0)
     rack (1.6.5)
     rack-protection (1.5.3)
       rack
@@ -37,10 +33,9 @@ GEM
       rack (>= 1.0, < 3)
     redis (4.1.1)
     require_all (2.0.0)
-    rest-client (2.0.2)
-      http-cookie (>= 1.0.2, < 2.0)
-      mime-types (>= 1.16, < 4.0)
-      netrc (~> 0.8)
+    rest-client (1.7.3)
+      mime-types (>= 1.16, < 3.0)
+      netrc (~> 0.7)
     shotgun (0.9.2)
       rack (>= 1.0)
     sinatra (1.4.8)
@@ -56,9 +51,6 @@ GEM
       tilt (>= 1.3, < 3)
     systemu (2.6.5)
     tilt (2.0.7)
-    unf (0.1.4)
-      unf_ext
-    unf_ext (0.0.7.6)
     uuid (2.3.9)
       macaddr (~> 1.0)