diff --git a/Gemfile.lock b/Gemfile.lock
index 63847a4..fa67b98 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -113,6 +113,7 @@ GEM
     irb (1.14.1)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
+    logger (1.6.1)
     loofah (2.22.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
@@ -153,8 +154,9 @@ GEM
     public_suffix (6.0.1)
     racc (1.8.1)
     rack (3.1.8)
-    rack-protection (4.0.0)
+    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)
@@ -212,17 +214,18 @@ GEM
       rspec-support (~> 3.13.0)
     rspec-support (3.13.1)
     ruby2_keywords (0.0.5)
-    sinatra (4.0.0)
+    sinatra (4.1.0)
+      logger (>= 1.6.0)
       mustermann (~> 3.0)
       rack (>= 3.0.0, < 4)
-      rack-protection (= 4.0.0)
+      rack-protection (= 4.1.0)
       rack-session (>= 2.0.0, < 3)
       tilt (~> 2.0)
-    sinatra-contrib (4.0.0)
+    sinatra-contrib (4.1.0)
       multi_json (>= 0.0.2)
       mustermann (~> 3.0)
-      rack-protection (= 4.0.0)
-      sinatra (= 4.0.0)
+      rack-protection (= 4.1.0)
+      sinatra (= 4.1.0)
       tilt (~> 2.0)
     stringio (3.1.1)
     thor (1.3.2)