diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 00000000..da4c0af9
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,11 @@
+version: '3.2'
+
+services:
+  postgres:
+    image: postgres:12
+    ports:
+      - 5432:5432
+    restart: on-failure
+    environment:
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: pg_search_test
diff --git a/spec/support/database.rb b/spec/support/database.rb
index ea31b63f..b5e0034e 100644
--- a/spec/support/database.rb
+++ b/spec/support/database.rb
@@ -11,10 +11,11 @@
 
 begin
   connection_options = { adapter: 'postgresql', database: 'pg_search_test', min_messages: 'warning' }
-  if ENV["CI"]
+  if ENV["CI"] || ENV["DOCKER"]
     connection_options[:username] = 'postgres'
     connection_options[:password] = 'postgres'
   end
+  connection_options[:host] = 'localhost' if ENV["DOCKER"]
   ActiveRecord::Base.establish_connection(connection_options)
   connection = ActiveRecord::Base.connection
   connection.execute("SELECT 1")