diff --git a/packages/server/src/integrations/postgres.ts b/packages/server/src/integrations/postgres.ts
index d38b657566..6301f4dcaf 100644
--- a/packages/server/src/integrations/postgres.ts
+++ b/packages/server/src/integrations/postgres.ts
@@ -204,6 +204,8 @@ module PostgresModule {
         }
       } catch (err) {
         tableKeys = {}
+      } finally {
+        await this.client.close()
       }
 
       const columnsResponse = await this.client.query(this.COLUMNS_SQL)