diff --git a/round-table-api/Gemfile.lock b/round-table-api/Gemfile.lock
index 9597f6d..42dd819 100644
--- a/round-table-api/Gemfile.lock
+++ b/round-table-api/Gemfile.lock
@@ -66,12 +66,12 @@ GEM
     method_source (1.0.0)
     mini_portile2 (2.4.0)
     minitest (5.14.2)
-    mustermann (1.1.1)
+    mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
     nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
     rack (2.2.3)
-    rack-protection (2.0.8.1)
+    rack-protection (2.2.3)
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -100,16 +100,16 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.9.0)
     rspec-support (3.9.3)
-    ruby2_keywords (0.0.2)
-    sinatra (2.0.8.1)
-      mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.8.1)
+    ruby2_keywords (0.0.5)
+    sinatra (2.2.3)
+      mustermann (~> 2.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.3)
       tilt (~> 2.0)
     sinatra-cross_origin (0.3.2)
     thor (1.0.1)
     thread_safe (0.3.6)
-    tilt (2.0.10)
+    tilt (2.0.11)
     tzinfo (1.2.7)
       thread_safe (~> 0.1)
     zeitwerk (2.4.0)