diff --git a/Dockerfile b/Dockerfile
index bf01fdbbc..2030e188f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,6 @@
 FROM ruby:2.5.3-alpine
 
+ENV INSTALL_MYSQL=true
 RUN apk update \
     && apk --no-cache add \
       "build-base>=0.5" \
@@ -10,6 +11,7 @@ RUN apk update \
       "sqlite-dev>=3.28" \
       "sqlite>=3.28" \
       "tzdata>=2019" \
+      "mariadb-dev>=10.3" \
     && rm -rf /var/cache/apk/*
 
 WORKDIR /app
diff --git a/Gemfile b/Gemfile
index f79bc4e3f..d939c2c5e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,5 +5,5 @@ gemspec
 gem 'simplecov', :require => false, :group => :test
 
 if ENV['INSTALL_MYSQL'] == "true"
-  gem 'mysql2', '~>0.3.15'
+  gem 'mysql2', '~>0.5'
 end
\ No newline at end of file