diff --git a/.ruby-version b/.ruby-version
index 351227fca..34cde5690 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.2.4
+3.2.6
diff --git a/Gemfile b/Gemfile
index 0f4dbf050..78e6adbda 100644
--- a/Gemfile
+++ b/Gemfile
@@ -32,7 +32,7 @@ group :test do
   gem "approvals", ">=0.0.24", "<1.0.0"
   gem "tzinfo", "~>2.0"
   gem "faraday-retry", "~>2.0"
-  gem "openapi_first", "~>0.20"
+  gem "openapi_first", "~>2.1.1"
 end
 
 group :pg, optional: true do
diff --git a/pact_broker.gemspec b/pact_broker.gemspec
index 3fc710787..cf41d21e1 100644
--- a/pact_broker.gemspec
+++ b/pact_broker.gemspec
@@ -58,14 +58,14 @@ Gem::Specification.new do |gem|
   gem.add_runtime_dependency "webmachine", ">= 2.0.0.beta", "< 3.0"
   gem.add_runtime_dependency "webrick", "~> 1.8" # webmachine requires webrick, but doesn't declare it as a dependency :shrug:
   gem.add_runtime_dependency "semver2", "~> 3.4.2"
-  gem.add_runtime_dependency "rack", ">= 2.2.3", "~> 2.2" # TODO update to 3
+  gem.add_runtime_dependency "rack", ">= 3.0.9.1", "~> 3.0"
   gem.add_runtime_dependency "redcarpet", ">= 3.5.1", "~>3.5"
   gem.add_runtime_dependency "pact-support" , "~> 1.16", ">= 1.16.4"
   gem.add_runtime_dependency "padrino-core", ">= 0.14.3", "~> 0.14"
-  gem.add_runtime_dependency "sinatra", "~> 3.0"
+  gem.add_runtime_dependency "sinatra", "~> 4.1.0"
   gem.add_runtime_dependency "haml", "~>5.0"
   gem.add_runtime_dependency "sucker_punch", "~>3.0"
-  gem.add_runtime_dependency "rack-protection", "~> 3.0"
+  gem.add_runtime_dependency "rack-protection", "~> 4.1.0"
   gem.add_runtime_dependency "table_print", "~> 1.5"
   gem.add_runtime_dependency "semantic_logger", "~> 4.11"
   gem.add_runtime_dependency "sanitize", "~> 6.0"