diff --git a/Gemfile.lock b/Gemfile.lock
index f533823..b814069 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -25,7 +25,6 @@ GEM
     diff-lcs (1.2.5)
     ffi (1.9.6)
     formatador (0.2.5)
-    git-version-bump (0.15.1)
     guard (2.10.4)
       formatador (>= 0.2.4)
       listen (~> 2.7)
@@ -53,16 +52,17 @@ GEM
     lumberjack (1.0.9)
     method_source (0.8.2)
     minitest (5.14.2)
+    mustermann (1.1.1)
+      ruby2_keywords (~> 0.0.1)
     nenv (0.1.1)
     pry (0.10.1)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    rack (1.6.0)
-    rack-contrib (1.4.0)
-      git-version-bump (~> 0.15)
-      rack (~> 1.4)
-    rack-protection (1.5.3)
+    rack (2.2.3)
+    rack-contrib (2.3.0)
+      rack (~> 2.0)
+    rack-protection (2.2.0)
       rack
     rack-test (0.6.2)
       rack (>= 1.0)
@@ -81,10 +81,12 @@ GEM
     rspec-mocks (3.1.3)
       rspec-support (~> 3.1.0)
     rspec-support (3.1.2)
-    sinatra (1.4.8)
-      rack (~> 1.5)
-      rack-protection (~> 1.4)
-      tilt (>= 1.3, < 3)
+    ruby2_keywords (0.0.5)
+    sinatra (2.2.0)
+      mustermann (~> 1.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.0)
+      tilt (~> 2.0)
     slop (3.6.0)
     thor (0.19.1)
     thread_safe (0.3.6)