diff --git a/upgade.sh b/upgade.sh
new file mode 100644
index 0000000..4b4e59b
--- /dev/null
+++ b/upgade.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -x
+
+docker run --rm -v ${CWD}:/tmp -v openstreetmap-data:/var/lib/postgresql/12/main -w /tmp overv/openstreetmap-tile-server pg_dumpall -U prostgres > dump.sql
+
+docker run --rm -v ${CWD}:/tmp -v openstreetmap-data:/var/lib/postgresql/13/main -w /tmp overv/openstreetmap-tile-server:2.0.0 psql -U postgres -d gis  < dump.sql