diff --git a/.ruby-version b/.ruby-version
index 338a5b5d..be94e6f5 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.6.6
+3.2.2
diff --git a/Gemfile b/Gemfile
index df4a21da..cd795db6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source 'http://rubygems.org'
 
-ruby '2.6.6'
+ruby '3.2.2'
 
 gem 'sinatra'
 gem 'thin'
diff --git a/Gemfile.lock b/Gemfile.lock
index 9808a77e..8277456a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,23 +1,29 @@
 GEM
   remote: http://rubygems.org/
   specs:
-    daemons (1.2.3)
-    eventmachine (1.2.0.1)
-    i18n (0.7.0)
-    maruku (0.7.2)
-    rack (1.6.12)
-    rack-protection (1.5.3)
+    concurrent-ruby (1.2.2)
+    daemons (1.4.1)
+    eventmachine (1.2.7)
+    i18n (1.13.0)
+      concurrent-ruby (~> 1.0)
+    maruku (0.7.3)
+    mustermann (3.0.0)
+      ruby2_keywords (~> 0.0.1)
+    rack (2.2.7)
+    rack-protection (3.0.6)
       rack
     rack-ssl-enforcer (0.2.9)
-    sinatra (1.4.7)
-      rack (~> 1.5)
-      rack-protection (~> 1.4)
-      tilt (>= 1.3, < 3)
-    thin (1.6.4)
+    ruby2_keywords (0.0.5)
+    sinatra (3.0.6)
+      mustermann (~> 3.0)
+      rack (~> 2.2, >= 2.2.4)
+      rack-protection (= 3.0.6)
+      tilt (~> 2.0)
+    thin (1.8.2)
       daemons (~> 1.0, >= 1.0.9)
       eventmachine (~> 1.0, >= 1.0.4)
-      rack (~> 1.0)
-    tilt (2.0.4)
+      rack (>= 1, < 3)
+    tilt (2.1.0)
 
 PLATFORMS
   ruby
@@ -30,7 +36,7 @@ DEPENDENCIES
   thin
 
 RUBY VERSION
-   ruby 2.6.6p146
+   ruby 3.2.2p53
 
 BUNDLED WITH
-   1.17.2
+   2.4.10