diff --git a/@overflow/infra/component/infra-map.component.ts b/@overflow/infra/component/infra-map.component.ts
index b4173c1..cd9d1ad 100644
--- a/@overflow/infra/component/infra-map.component.ts
+++ b/@overflow/infra/component/infra-map.component.ts
@@ -1,5 +1,5 @@
 import {
-  Component, OnInit, EventEmitter, Output, Input, OnChanges, SimpleChanges,
+  Component, OnInit, EventEmitter, Output,
 } from '@angular/core';
 import { ProbeHostService } from '@overflow/probe/service/probe-host.service';
 import { Store, select } from '@ngrx/store';
diff --git a/package-lock.json b/package-lock.json
index c45d3b7..fa92d86 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8693,6 +8693,11 @@
         "tslib": "^1.9.0"
       }
     },
+    "rxjs-compat": {
+      "version": "6.2.1",
+      "resolved": "https://nexus.loafle.net/repository/npm-all/rxjs-compat/-/rxjs-compat-6.2.1.tgz",
+      "integrity": "sha512-Pst0lkAwVodBbBOIZic9aM1vY9asJ2u8GfKN115+goIH83PAlizJDyvixuxPAuQ1UtkmBuro7+0PqKQ3PSkhEg=="
+    },
     "rxjs-fetch": {
       "version": "2.1.6",
       "resolved": "https://nexus.loafle.net/repository/npm-all/rxjs-fetch/-/rxjs-fetch-2.1.6.tgz",
diff --git a/package.json b/package.json
index 2086eee..de6d080 100644
--- a/package.json
+++ b/package.json
@@ -51,6 +51,7 @@
     "primeng": "^5.2.4",
     "reflect-metadata": "^0.1.12",
     "rxjs": "^6.0.0",
+    "rxjs-compat": "^6.0.0",
     "rxjs-fetch": "^2.1.6",
     "zone.js": "^0.8.26"
   },