diff --git a/pact_broker/Gemfile b/pact_broker/Gemfile
index b075347..9e23bbc 100644
--- a/pact_broker/Gemfile
+++ b/pact_broker/Gemfile
@@ -3,6 +3,6 @@ source 'https://rubygems.org'
 gem "pact_broker"
 gem "pg", "~>1.5"
 gem "puma", "~> 5.6", ">= 5.6.8"
-gem "mysql2", "~>0.3"
+gem "mysql2", "~>0.5"
 gem "sqlite3", "~>1.6", force_ruby_platform: true
 gem "rake", "~> 13.0"
\ No newline at end of file
diff --git a/pact_broker/Gemfile.lock b/pact_broker/Gemfile.lock
index 516136a..8e7fa94 100644
--- a/pact_broker/Gemfile.lock
+++ b/pact_broker/Gemfile.lock
@@ -60,7 +60,7 @@ GEM
     multi_json (1.15.0)
     mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
-    mysql2 (0.5.5)
+    mysql2 (0.5.6)
     nio4r (2.7.0)
     nokogiri (1.16.2)
       mini_portile2 (~> 2.8.2)
@@ -164,7 +164,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  mysql2 (~> 0.3)
+  mysql2 (~> 0.5)
   pact_broker
   pg (~> 1.5)
   puma (~> 5.6, >= 5.6.8)