diff --git a/common/version/version.go b/common/version/version.go
index 2dcd985d8..f987b8a17 100644
--- a/common/version/version.go
+++ b/common/version/version.go
@@ -6,7 +6,7 @@ import (
 	"strings"
 )
 
-var tag = "v4.1.70"
+var tag = "v4.1.71"
 
 var commit = func() string {
 	if info, ok := debug.ReadBuildInfo(); ok {
diff --git a/database/migrate/migrations/00008_drop_unique_message_hash.sql b/database/migrate/migrations/00008_drop_unique_message_hash.sql
new file mode 100644
index 000000000..75546f30b
--- /dev/null
+++ b/database/migrate/migrations/00008_drop_unique_message_hash.sql
@@ -0,0 +1,15 @@
+-- +goose Up
+-- +goose StatementBegin
+drop index l1_message_hash_uindex;
+
+create index l1_message_hash_index
+on l1_message (msg_hash) where deleted_at IS NULL;
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+drop index l1_message_hash_index;
+
+create unique index l1_message_hash_uindex
+on l1_message (msg_hash) where deleted_at IS NULL;
+-- +goose StatementEnd