diff --git a/internal/eventbus/event_bus.go b/internal/eventbus/event_bus.go
index aa096aa17..c03dd90a7 100644
--- a/internal/eventbus/event_bus.go
+++ b/internal/eventbus/event_bus.go
@@ -13,7 +13,7 @@ import (
 	"github.com/tendermint/tendermint/types"
 )
 
-var DefaultBufferCapacity = 100
+var DefaultBufferCapacity = 10000
 
 // Subscription is a proxy interface for a pubsub Subscription.
 type Subscription interface {