diff --git a/Netdisco/lib/App/Netdisco/DB.pm b/Netdisco/lib/App/Netdisco/DB.pm
index 6bfaf812..9bf9a860 100644
--- a/Netdisco/lib/App/Netdisco/DB.pm
+++ b/Netdisco/lib/App/Netdisco/DB.pm
@@ -10,7 +10,7 @@ __PACKAGE__->load_namespaces(
     default_resultset_class => 'ResultSet',
 );
 
-our $VERSION = 31; # schema version used for upgrades, keep as integer
+our $VERSION = 32; # schema version used for upgrades, keep as integer
 
 use Path::Class;
 use File::Basename;
diff --git a/Netdisco/lib/App/Netdisco/DB/schema_versions/App-Netdisco-DB-31-32-PostgreSQL.sql b/Netdisco/lib/App/Netdisco/DB/schema_versions/App-Netdisco-DB-31-32-PostgreSQL.sql
new file mode 100644
index 00000000..536f8c80
--- /dev/null
+++ b/Netdisco/lib/App/Netdisco/DB/schema_versions/App-Netdisco-DB-31-32-PostgreSQL.sql
@@ -0,0 +1,8 @@
+
+BEGIN;
+
+ALTER TABLE device_port_vlan DROP CONSTRAINT device_port_vlan_pkey;
+
+ALTER TABLE device_port_vlan ADD PRIMARY KEY (ip, port, vlan, native);
+
+COMMIT;