diff --git a/config/database.yml b/config/database.yml
index 2b5085410..2d993c369 100644
--- a/config/database.yml
+++ b/config/database.yml
@@ -17,6 +17,8 @@ default: &default
   port: <%= ENV.fetch "FIZZY_DB_PORT", 3306 %>
   pool: 50
   timeout: 5000
+  variables:
+    transaction_isolation: READ-COMMITTED
 
 development:
   primary: