diff --git a/Sample-01/package-lock.json b/Sample-01/package-lock.json
index b0b633ee..637e5e58 100644
--- a/Sample-01/package-lock.json
+++ b/Sample-01/package-lock.json
@@ -30,7 +30,7 @@
         "ngx-highlightjs": "^4.1.4",
         "npm-run-all": "^4.1.5",
         "rxjs": "^6.6.7",
-        "tslib": "^2.3.1",
+        "tslib": "^2.4.0",
         "zone.js": "~0.10.2"
       },
       "devDependencies": {
@@ -3000,12 +3000,6 @@
         "rxjs": "^6.5.5"
       }
     },
-    "node_modules/@ng-bootstrap/ng-bootstrap/node_modules/tslib": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.0.1.tgz",
-      "integrity": "sha512-SgIkNheinmEBgx1IUNirK0TUD4X9yjjBRTqqjggWCU3pUEqIk3/Uwl3yRixYKT6WjQuGiwDv4NomL3wqRCj+CQ==",
-      "dev": true
-    },
     "node_modules/@ngtools/webpack": {
       "version": "11.2.19",
       "resolved": "https://registry.npmjs.org/@ngtools/webpack/-/webpack-11.2.19.tgz",
@@ -16211,9 +16205,9 @@
       }
     },
     "node_modules/tslib": {
-      "version": "2.3.1",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.1.tgz",
-      "integrity": "sha512-77EbyPPpMz+FRFRuAFlWMtmgUWGe9UOG2Z25NqCwiIjRhOf5iKGuzSe5P2w1laq+FkRy4p+PCuVkJSGkzTEKVw=="
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.4.0.tgz",
+      "integrity": "sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ=="
     },
     "node_modules/tslint": {
       "version": "6.1.3",
@@ -20586,14 +20580,6 @@
       "dev": true,
       "requires": {
         "tslib": "^2.0.0"
-      },
-      "dependencies": {
-        "tslib": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.0.1.tgz",
-          "integrity": "sha512-SgIkNheinmEBgx1IUNirK0TUD4X9yjjBRTqqjggWCU3pUEqIk3/Uwl3yRixYKT6WjQuGiwDv4NomL3wqRCj+CQ==",
-          "dev": true
-        }
       }
     },
     "@ngtools/webpack": {
@@ -30989,9 +30975,9 @@
       "dev": true
     },
     "tslib": {
-      "version": "2.3.1",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.1.tgz",
-      "integrity": "sha512-77EbyPPpMz+FRFRuAFlWMtmgUWGe9UOG2Z25NqCwiIjRhOf5iKGuzSe5P2w1laq+FkRy4p+PCuVkJSGkzTEKVw=="
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.4.0.tgz",
+      "integrity": "sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ=="
     },
     "tslint": {
       "version": "6.1.3",
diff --git a/Sample-01/package.json b/Sample-01/package.json
index 5d667d3b..8f2f5024 100644
--- a/Sample-01/package.json
+++ b/Sample-01/package.json
@@ -40,7 +40,7 @@
     "ngx-highlightjs": "^4.1.4",
     "npm-run-all": "^4.1.5",
     "rxjs": "^6.6.7",
-    "tslib": "^2.3.1",
+    "tslib": "^2.4.0",
     "zone.js": "~0.10.2"
   },
   "devDependencies": {