diff --git a/Gemfile.lock b/Gemfile.lock
index 608c42a..cb5f6b1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,14 +1,26 @@
 GEM
   remote: http://rubygems.org/
   specs:
-    rack (1.4.1)
-    rack-protection (1.2.0)
-      rack
-    sinatra (1.3.3)
-      rack (~> 1.3, >= 1.3.6)
-      rack-protection (~> 1.2)
-      tilt (~> 1.3, >= 1.3.3)
-    tilt (1.3.3)
+    base64 (0.2.0)
+    logger (1.6.1)
+    mustermann (3.0.3)
+      ruby2_keywords (~> 0.0.1)
+    rack (3.1.8)
+    rack-protection (4.1.0)
+      base64 (>= 0.1.0)
+      logger (>= 1.6.0)
+      rack (>= 3.0.0, < 4)
+    rack-session (2.0.0)
+      rack (>= 3.0.0)
+    ruby2_keywords (0.0.5)
+    sinatra (4.1.0)
+      logger (>= 1.6.0)
+      mustermann (~> 3.0)
+      rack (>= 3.0.0, < 4)
+      rack-protection (= 4.1.0)
+      rack-session (>= 2.0.0, < 3)
+      tilt (~> 2.0)
+    tilt (2.4.0)
 
 PLATFORMS
   ruby