diff --git a/client/package-lock.json b/client/package-lock.json
index 2cb0233..f204200 100644
--- a/client/package-lock.json
+++ b/client/package-lock.json
@@ -210,6 +210,13 @@
       "integrity": "sha512-dd/lq7kw3uwfHPICan8psu2nthuUpp7PvMLuNIm0XxObZ4oNs0ls6uxKEDPnEkRKoGdiJpvmsyzZZN9ACMPEAA==",
       "requires": {
         "tslib": "1.9.3"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.9.3",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
+          "integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ=="
+        }
       }
     },
     "@angular/cli": {
@@ -247,6 +254,13 @@
       "integrity": "sha512-73xxTSYJNKfiJ7C1Ajg+sz5l8y+blb/vNgHYg7O3yem5zLBnfPpidJ1UGg4W4d2Y+jwUVJbZKh8SKJarqAJVUQ==",
       "requires": {
         "tslib": "1.9.3"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.9.3",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
+          "integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ=="
+        }
       }
     },
     "@angular/compiler": {
@@ -255,6 +269,13 @@
       "integrity": "sha512-FPIb2j3zfoBwb6vo/u0gQeu70h8InGlSisBr3xMACs/35/pwB6kbQR+JQiUr0D7k6QApg7AuMkvq8aFNelg0aw==",
       "requires": {
         "tslib": "1.9.3"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.9.3",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
+          "integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ=="
+        }
       }
     },
     "@angular/compiler-cli": {
@@ -418,6 +439,13 @@
       "integrity": "sha512-61l3rIQTVdT45eOf6/fBJIeVmV10mcrxqS4N/1OWkuDT29YSJTZSxGcv8QjAyyutuhcqWWpO6gVRkN07rWmkPg==",
       "requires": {
         "tslib": "1.9.3"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.9.3",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
+          "integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ=="
+        }
       }
     },
     "@angular/forms": {
@@ -426,6 +454,13 @@
       "integrity": "sha512-zAPx2kMV1/FbP5DrY472Sd/ze1m+GS6T5ullZCtP392r62p2RkwzDCXieR51YiRJjZj3M6c3AcRND7PWBdXT7A==",
       "requires": {
         "tslib": "1.9.3"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.9.3",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
+          "integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ=="
+        }
       }
     },
     "@angular/http": {
@@ -434,6 +469,13 @@
       "integrity": "sha512-LDsSqyexh8fj23y+G2oSGLWSZVhbxBBo2ehYHnRgH/jlp0pmZVLRaGgUMNSCVtZc1rxLzpEjZjtw+P+qlutAtw==",
       "requires": {
         "tslib": "1.9.3"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.9.3",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
+          "integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ=="
+        }
       }
     },
     "@angular/language-service": {
@@ -448,6 +490,13 @@
       "integrity": "sha512-CB7pqMwtgb7KjdHDAJlsXcs0rrU+2xQVaoOaqEfJtUrKhtGMLaZh8Qoic5l92SoGattkOw7SYarAOsWlAsVfvw==",
       "requires": {
         "tslib": "1.9.3"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.9.3",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
+          "integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ=="
+        }
       }
     },
     "@angular/platform-browser-dynamic": {
@@ -456,6 +505,13 @@
       "integrity": "sha512-DmBSUyFPoyKqkmBXyJ2CrP1oXDioeoBlPA8lmWUDUv2yBuoHIzIkdY/OkTZbdyu/QYa1hK2Jl9OlfoeoenKddg==",
       "requires": {
         "tslib": "1.9.3"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.9.3",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
+          "integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ=="
+        }
       }
     },
     "@angular/router": {
@@ -464,6 +520,13 @@
       "integrity": "sha512-tekI3dkdvd65oMoxjjgRA+16uDgPUBWHhYxids6pgO8vobZNtCo8VaVlcDyLUhdmtS5kONELx0iL5E2M0Y2Bag==",
       "requires": {
         "tslib": "1.9.3"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.9.3",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
+          "integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ=="
+        }
       }
     },
     "@babel/code-frame": {
@@ -8593,6 +8656,13 @@
       "integrity": "sha512-0MI8+mkKAXZUF9vMrEoPnaoHkfzBPP4IGwUYRJhIRJF6/w3uByO1e91bEHn8zd43RdkTMKiooYKmwz7RH6zfOQ==",
       "requires": {
         "tslib": "1.9.3"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.9.3",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
+          "integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ=="
+        }
       }
     },
     "safe-buffer": {
@@ -10173,9 +10243,9 @@
       }
     },
     "tslib": {
-      "version": "1.9.3",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
-      "integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ=="
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
+      "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg=="
     },
     "tslint": {
       "version": "5.11.0",
@@ -10222,6 +10292,12 @@
           "resolved": "https://registry.npmjs.org/commander/-/commander-2.18.0.tgz",
           "integrity": "sha512-6CYPa+JP2ftfRU2qkDK+UTVeQYosOg/2GbcjIcKPHfinyOLPVGXu/ovN86RP49Re5ndJK1N0kuiidFFuepc4ZQ==",
           "dev": true
+        },
+        "tslib": {
+          "version": "1.9.3",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
+          "integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ==",
+          "dev": true
         }
       }
     },
@@ -10232,6 +10308,14 @@
       "dev": true,
       "requires": {
         "tslib": "1.9.3"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.9.3",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
+          "integrity": "sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ==",
+          "dev": true
+        }
       }
     },
     "tty-browserify": {
diff --git a/client/package.json b/client/package.json
index 9db37df..ebedce7 100644
--- a/client/package.json
+++ b/client/package.json
@@ -27,7 +27,7 @@
     "jquery": "3.4.1",
     "materialize-css": "0.100.2",
     "rxjs": "6.2.2",
-    "tslib": "1.9.3",
+    "tslib": "1.14.1",
     "zone.js": "0.8.29"
   },
   "devDependencies": {
diff --git a/client/yarn.lock b/client/yarn.lock
index 7a80ec9..48c246d 100644
--- a/client/yarn.lock
+++ b/client/yarn.lock
@@ -6132,7 +6132,12 @@ tsickle@^0.32.1:
     source-map "^0.6.0"
     source-map-support "^0.5.0"
 
-tslib@1.9.3, tslib@^1.8.0, tslib@^1.8.1, tslib@^1.9.0:
+tslib@1.14.1:
+  version "1.14.1"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.14.1.tgz#cf2d38bdc34a134bcaf1091c41f6619e2f672d00"
+  integrity sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==
+
+tslib@^1.8.0, tslib@^1.8.1, tslib@^1.9.0:
   version "1.9.3"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.3.tgz#d7e4dd79245d85428c4d7e4822a79917954ca286"