diff --git a/package-lock.json b/package-lock.json
index 49f6219..b1bec1c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,6 +21,14 @@
           "dev": true,
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+          },
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+              "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
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+              "dev": true
+            }
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@@ -102,6 +110,14 @@
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           "requires": {
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+          },
+          "dependencies": {
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+              "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
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+              "dev": true
+            }
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@@ -157,6 +173,14 @@
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+          },
+          "dependencies": {
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+              "version": "1.13.0",
+              "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
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+              "dev": true
+            }
           }
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@@ -181,6 +205,14 @@
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+          },
+          "dependencies": {
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+              "version": "1.13.0",
+              "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
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+              "dev": true
+            }
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@@ -202,6 +234,14 @@
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+          },
+          "dependencies": {
+            "tslib": {
+              "version": "1.13.0",
+              "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
+              "integrity": "sha512-i/6DQjL8Xf3be4K/E6Wgpekn5Qasl1usyw++dAA35Ue5orEn65VIxOA+YvNNl9HV3qv70T7CNwjODHZrLwvd1Q==",
+              "dev": true
+            }
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@@ -376,6 +416,13 @@
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       "requires": {
         "tslib": "^1.9.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.13.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
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+        }
       }
     },
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@@ -385,6 +432,14 @@
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+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.13.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
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+          "dev": true
+        }
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@@ -1124,6 +1179,12 @@
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           }
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+        "tslib": {
+          "version": "1.13.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
+          "integrity": "sha512-i/6DQjL8Xf3be4K/E6Wgpekn5Qasl1usyw++dAA35Ue5orEn65VIxOA+YvNNl9HV3qv70T7CNwjODHZrLwvd1Q==",
+          "dev": true
+        },
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       "requires": {
         "tslib": "^1.9.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.13.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
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+        }
       }
     },
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       "requires": {
         "tslib": "^1.9.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.13.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
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+        }
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@@ -1188,6 +1263,13 @@
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       "requires": {
         "tslib": "^1.9.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.13.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
+          "integrity": "sha512-i/6DQjL8Xf3be4K/E6Wgpekn5Qasl1usyw++dAA35Ue5orEn65VIxOA+YvNNl9HV3qv70T7CNwjODHZrLwvd1Q=="
+        }
       }
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     "@angular/platform-browser-dynamic": {
@@ -1196,6 +1278,13 @@
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       "requires": {
         "tslib": "^1.9.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.13.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
+          "integrity": "sha512-i/6DQjL8Xf3be4K/E6Wgpekn5Qasl1usyw++dAA35Ue5orEn65VIxOA+YvNNl9HV3qv70T7CNwjODHZrLwvd1Q=="
+        }
       }
     },
     "@angular/router": {
@@ -1204,6 +1293,13 @@
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       "requires": {
         "tslib": "^1.9.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.13.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
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+        }
       }
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@@ -2136,6 +2232,13 @@
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       "requires": {
         "tslib": "^1.9.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.13.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
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+        }
       }
     },
     "@firebase/analytics": {
@@ -2149,6 +2252,13 @@
         "@firebase/logger": "0.2.1",
         "@firebase/util": "0.2.44",
         "tslib": "1.11.1"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.11.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
+          "integrity": "sha512-aZW88SY8kQbU7gpV19lN24LtXh/yD4ZZg6qieAJDDg+YBsJcSmLGK9QpnUjAKVG/xefmvJGd1WUmfpT/g6AJGA=="
+        }
       }
     },
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@@ -2168,6 +2278,13 @@
         "dom-storage": "2.1.0",
         "tslib": "1.11.1",
         "xmlhttprequest": "1.8.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.11.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
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+        }
       }
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@@ -2200,6 +2317,13 @@
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         "@firebase/util": "0.2.44",
         "tslib": "1.11.1"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.11.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
+          "integrity": "sha512-aZW88SY8kQbU7gpV19lN24LtXh/yD4ZZg6qieAJDDg+YBsJcSmLGK9QpnUjAKVG/xefmvJGd1WUmfpT/g6AJGA=="
+        }
       }
     },
     "@firebase/database": {
@@ -2223,6 +2347,11 @@
           "requires": {
             "websocket-driver": ">=0.5.1"
           }
+        },
+        "tslib": {
+          "version": "1.11.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
+          "integrity": "sha512-aZW88SY8kQbU7gpV19lN24LtXh/yD4ZZg6qieAJDDg+YBsJcSmLGK9QpnUjAKVG/xefmvJGd1WUmfpT/g6AJGA=="
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@@ -2247,6 +2376,13 @@
         "@grpc/proto-loader": "^0.5.0",
         "grpc": "1.24.2",
         "tslib": "1.11.1"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.11.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
+          "integrity": "sha512-aZW88SY8kQbU7gpV19lN24LtXh/yD4ZZg6qieAJDDg+YBsJcSmLGK9QpnUjAKVG/xefmvJGd1WUmfpT/g6AJGA=="
+        }
       }
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     "@firebase/firestore-types": {
@@ -2264,6 +2400,13 @@
         "@firebase/messaging-types": "0.4.4",
         "isomorphic-fetch": "2.2.1",
         "tslib": "1.11.1"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.11.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
+          "integrity": "sha512-aZW88SY8kQbU7gpV19lN24LtXh/yD4ZZg6qieAJDDg+YBsJcSmLGK9QpnUjAKVG/xefmvJGd1WUmfpT/g6AJGA=="
+        }
       }
     },
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@@ -2281,6 +2424,13 @@
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         "idb": "3.0.2",
         "tslib": "1.11.1"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.11.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
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+        }
       }
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@@ -2304,6 +2454,13 @@
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         "idb": "3.0.2",
         "tslib": "1.11.1"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.11.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
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+        }
       }
     },
     "@firebase/messaging-types": {
@@ -2322,6 +2479,13 @@
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         "@firebase/util": "0.2.44",
         "tslib": "1.11.1"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.11.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
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+        }
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     "@firebase/performance-types": {
@@ -2362,6 +2526,13 @@
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         "@firebase/util": "0.2.44",
         "tslib": "1.11.1"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.11.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
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+        }
       }
     },
     "@firebase/remote-config-types": {
@@ -2378,6 +2549,13 @@
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         "@firebase/util": "0.2.44",
         "tslib": "1.11.1"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.11.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
+          "integrity": "sha512-aZW88SY8kQbU7gpV19lN24LtXh/yD4ZZg6qieAJDDg+YBsJcSmLGK9QpnUjAKVG/xefmvJGd1WUmfpT/g6AJGA=="
+        }
       }
     },
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@@ -2391,6 +2569,13 @@
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       "requires": {
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+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.11.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
+          "integrity": "sha512-aZW88SY8kQbU7gpV19lN24LtXh/yD4ZZg6qieAJDDg+YBsJcSmLGK9QpnUjAKVG/xefmvJGd1WUmfpT/g6AJGA=="
+        }
       }
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     "@firebase/webchannel-wrapper": {
@@ -2563,6 +2748,13 @@
       "requires": {
         "@ionic/core": "5.0.7",
         "tslib": "^1.9.3"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.13.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
+          "integrity": "sha512-i/6DQjL8Xf3be4K/E6Wgpekn5Qasl1usyw++dAA35Ue5orEn65VIxOA+YvNNl9HV3qv70T7CNwjODHZrLwvd1Q=="
+        }
       }
     },
     "@ionic/angular-toolkit": {
@@ -2579,6 +2771,12 @@
         "ws": "^7.0.1"
       },
       "dependencies": {
+        "tslib": {
+          "version": "1.13.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
+          "integrity": "sha512-i/6DQjL8Xf3be4K/E6Wgpekn5Qasl1usyw++dAA35Ue5orEn65VIxOA+YvNNl9HV3qv70T7CNwjODHZrLwvd1Q==",
+          "dev": true
+        },
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           "resolved": "https://registry.npmjs.org/ws/-/ws-7.2.3.tgz",
@@ -2594,6 +2792,13 @@
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         "tslib": "^1.10.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.13.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
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+        }
       }
     },
     "@istanbuljs/schema": {
@@ -2622,6 +2827,14 @@
           "dev": true,
           "requires": {
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+          },
+          "dependencies": {
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+              "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
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+              "dev": true
+            }
           }
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@@ -2713,6 +2926,14 @@
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           "requires": {
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+          },
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+              "dev": true
+            }
           }
         },
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@@ -4342,6 +4563,14 @@
       "dev": true,
       "requires": {
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+      },
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+          "version": "1.13.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
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+          "dev": true
+        }
       }
     },
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@@ -12934,6 +13163,13 @@
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+      },
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+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
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+        }
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@@ -14669,9 +14905,9 @@
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+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.0.0.tgz",
+      "integrity": "sha512-lTqkx847PI7xEDYJntxZH89L2/aXInsyF2luSafe/+0fHOMjlBNXdH6th7f70qxLDhul7KZK0zC8V5ZIyHl0/g=="
     },
     "tslint": {
       "version": "5.15.0",
@@ -14692,6 +14928,14 @@
         "semver": "^5.3.0",
         "tslib": "^1.8.0",
         "tsutils": "^2.29.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.13.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
+          "integrity": "sha512-i/6DQjL8Xf3be4K/E6Wgpekn5Qasl1usyw++dAA35Ue5orEn65VIxOA+YvNNl9HV3qv70T7CNwjODHZrLwvd1Q==",
+          "dev": true
+        }
       }
     },
     "tsutils": {
@@ -14701,6 +14945,14 @@
       "dev": true,
       "requires": {
         "tslib": "^1.8.1"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.13.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.13.0.tgz",
+          "integrity": "sha512-i/6DQjL8Xf3be4K/E6Wgpekn5Qasl1usyw++dAA35Ue5orEn65VIxOA+YvNNl9HV3qv70T7CNwjODHZrLwvd1Q==",
+          "dev": true
+        }
       }
     },
     "tty-browserify": {
diff --git a/package.json b/package.json
index 46cc7f3..b5f0acb 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "firebase": ">= 5.5.7 <8",
     "jetifier": "^1.6.5",
     "rxjs": "~6.5.1",
-    "tslib": "^1.9.0",
+    "tslib": "^2.0.0",
     "zone.js": "~0.9.1"
   },
   "devDependencies": {