diff --git a/ruby-directory-sync-example/Gemfile b/ruby-directory-sync-example/Gemfile
index 71773c7..60cc4dc 100644
--- a/ruby-directory-sync-example/Gemfile
+++ b/ruby-directory-sync-example/Gemfile
@@ -4,6 +4,6 @@
 source 'https://rubygems.org'
 
 gem 'dotenv', '2.7.6'
-gem 'sinatra', '2.2.0'
+gem 'sinatra', '2.2.3'
 gem 'workos', '2.5.0'
 gem 'sinatra-websocket', '0.3.1'
diff --git a/ruby-directory-sync-example/Gemfile.lock b/ruby-directory-sync-example/Gemfile.lock
index 5a34d6d..1cdc5ff 100644
--- a/ruby-directory-sync-example/Gemfile.lock
+++ b/ruby-directory-sync-example/Gemfile.lock
@@ -9,17 +9,17 @@ GEM
       addressable (>= 2.1.1)
       eventmachine (>= 0.12.9)
     eventmachine (1.2.7)
-    mustermann (1.1.2)
+    mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
     public_suffix (5.0.1)
     rack (2.2.6.4)
-    rack-protection (2.2.0)
+    rack-protection (2.2.3)
       rack
     ruby2_keywords (0.0.5)
-    sinatra (2.2.0)
-      mustermann (~> 1.0)
+    sinatra (2.2.3)
+      mustermann (~> 2.0)
       rack (~> 2.2)
-      rack-protection (= 2.2.0)
+      rack-protection (= 2.2.3)
       tilt (~> 2.0)
     sinatra-websocket (0.3.1)
       em-websocket (~> 0.3.6)
@@ -39,7 +39,7 @@ PLATFORMS
 
 DEPENDENCIES
   dotenv (= 2.7.6)
-  sinatra (= 2.2.0)
+  sinatra (= 2.2.3)
   sinatra-websocket (= 0.3.1)
   workos (= 2.5.0)