diff --git a/Gemfile.lock b/Gemfile.lock
index f950312..5fac2bc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,28 +1,40 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    faraday (0.12.1)
-      multipart-post (>= 1.2, < 3)
-    jwt (1.5.6)
-    multi_json (1.12.1)
+    base64 (0.2.0)
+    faraday (2.8.1)
+      base64
+      faraday-net_http (>= 2.0, < 3.1)
+      ruby2_keywords (>= 0.0.4)
+    faraday-net_http (3.0.2)
+    hashie (5.0.0)
+    jwt (2.10.1)
+      base64
     multi_xml (0.6.0)
-    multipart-post (2.0.0)
-    mustermann (1.0.0)
-    oauth2 (1.4.0)
-      faraday (>= 0.8, < 0.13)
-      jwt (~> 1.0)
-      multi_json (~> 1.3)
+    mustermann (3.0.3)
+      ruby2_keywords (~> 0.0.1)
+    oauth2 (2.0.9)
+      faraday (>= 0.17.3, < 3.0)
+      jwt (>= 1.0, < 3.0)
       multi_xml (~> 0.5)
-      rack (>= 1.2, < 3)
-    rack (2.0.3)
-    rack-protection (2.0.0)
-      rack
-    sinatra (2.0.0)
-      mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.0)
+      rack (>= 1.2, < 4)
+      snaky_hash (~> 2.0)
+      version_gem (~> 1.1)
+    rack (2.2.14)
+    rack-protection (3.2.0)
+      base64 (>= 0.1.0)
+      rack (~> 2.2, >= 2.2.4)
+    ruby2_keywords (0.0.5)
+    sinatra (3.2.0)
+      mustermann (~> 3.0)
+      rack (~> 2.2, >= 2.2.4)
+      rack-protection (= 3.2.0)
       tilt (~> 2.0)
-    tilt (2.0.7)
+    snaky_hash (2.0.1)
+      hashie
+      version_gem (~> 1.1, >= 1.1.1)
+    tilt (2.6.0)
+    version_gem (1.1.8)
 
 PLATFORMS
   ruby
@@ -32,4 +44,4 @@ DEPENDENCIES
   sinatra
 
 BUNDLED WITH
-   1.15.1
+   2.4.22