diff --git a/src/Gemfile b/src/Gemfile
index 8150fa1..9b2cea4 100644
--- a/src/Gemfile
+++ b/src/Gemfile
@@ -4,4 +4,4 @@ source 'https://rubygems.org'
 gem 'bormashino', '~> 0.3.0'
 gem 'json_pure', '~> 2.6', '>= 2.6.1'
 gem 'ruby2_keywords', '0.0.4'
-gem 'sinatra', '>= 4.0.0'
+gem 'sinatra', '>= 4.1.0'
diff --git a/src/Gemfile.lock b/src/Gemfile.lock
index 5b4063d..51c0992 100644
--- a/src/Gemfile.lock
+++ b/src/Gemfile.lock
@@ -8,32 +8,37 @@ GEM
       ruby2_keywords (= 0.0.4)
       sinatra (>= 4.0.0)
     json_pure (2.6.3)
-    mustermann (3.0.1)
+    logger (1.6.6)
+    mustermann (3.0.3)
       ruby2_keywords (~> 0.0.1)
     os (1.1.4)
-    rack (3.1.7)
-    rack-protection (4.0.0)
+    rack (3.1.12)
+    rack-protection (4.1.1)
       base64 (>= 0.1.0)
+      logger (>= 1.6.0)
       rack (>= 3.0.0, < 4)
-    rack-session (2.0.0)
+    rack-session (2.1.0)
+      base64 (>= 0.1.0)
       rack (>= 3.0.0)
     ruby2_keywords (0.0.4)
-    sinatra (4.0.0)
+    sinatra (4.1.1)
+      logger (>= 1.6.0)
       mustermann (~> 3.0)
       rack (>= 3.0.0, < 4)
-      rack-protection (= 4.0.0)
+      rack-protection (= 4.1.1)
       rack-session (>= 2.0.0, < 3)
       tilt (~> 2.0)
-    tilt (2.4.0)
+    tilt (2.6.0)
 
 PLATFORMS
+  ruby
   x86_64-linux
 
 DEPENDENCIES
   bormashino (~> 0.3.0)
   json_pure (~> 2.6, >= 2.6.1)
   ruby2_keywords (= 0.0.4)
-  sinatra (>= 4.0.0)
+  sinatra (>= 4.1.0)
 
 BUNDLED WITH
    2.4.6