diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9bc477b..40c80ca 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,9 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Security
+- Upgrade sinatra to 2.2.3 in /tests/integration/apps/ruby to resolve CVE-2022-45442
+  [cyberark/cloudfoundry-conjur-buildpack](https://github.com/cyberark/cloudfoundry-conjur-buildpack/pull/159)
 
 ## [2.2.6] - 2022-11-23
 ### Changed
diff --git a/tests/integration/apps/ruby/Gemfile.lock b/tests/integration/apps/ruby/Gemfile.lock
index 9bf9fb8..8adda97 100644
--- a/tests/integration/apps/ruby/Gemfile.lock
+++ b/tests/integration/apps/ruby/Gemfile.lock
@@ -32,24 +32,24 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     minitest (5.16.2)
-    mustermann (1.1.1)
+    mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
     netrc (0.11.0)
     rack (2.2.4)
-    rack-protection (2.2.0)
+    rack-protection (2.2.3)
       rack
     rest-client (2.0.2)
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 4.0)
       netrc (~> 0.8)
     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)
     table_print (1.5.6)
-    tilt (2.0.10)
+    tilt (2.0.11)
     tzinfo (2.0.5)
       concurrent-ruby (~> 1.0)
     unf (0.1.4)