diff --git a/package-lock.json b/package-lock.json
index 77a231d..fb79793 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -34,7 +34,7 @@
         "ngx-toastr": "^15.2.2",
         "rxjs": "^6.0.0",
         "sass": "^1.71.0",
-        "tslib": "^2.0.0",
+        "tslib": "^2.6.3",
         "xlsx": "^0.18.5",
         "zone.js": "~0.11.4"
       },
@@ -477,6 +477,12 @@
         "node": ">= 8"
       }
     },
+    "node_modules/@angular-devkit/build-angular/node_modules/tslib": {
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.5.0.tgz",
+      "integrity": "sha512-336iVw3rtn2BUK7ORdIAHTyxHGRIHVReokCR3XjbckJMK7ms8FysBfhLR8IXnAgy7T0PTPNBWKiH514FOW/WSg==",
+      "license": "0BSD"
+    },
     "node_modules/@angular-devkit/build-webpack": {
       "version": "0.1502.11",
       "resolved": "https://registry.npmjs.org/@angular-devkit/build-webpack/-/build-webpack-0.1502.11.tgz",
@@ -13938,9 +13944,10 @@
       }
     },
     "node_modules/tslib": {
-      "version": "2.5.0",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.5.0.tgz",
-      "integrity": "sha512-336iVw3rtn2BUK7ORdIAHTyxHGRIHVReokCR3XjbckJMK7ms8FysBfhLR8IXnAgy7T0PTPNBWKiH514FOW/WSg=="
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.3.tgz",
+      "integrity": "sha512-xNvxJEOUiWPGhUuUdQgAJPKOOJfGnIyKySOc09XkKsgdUV/3E2zvwZYdejjmRgPCgcym1juLH3226yA7sEFJKQ==",
+      "license": "0BSD"
     },
     "node_modules/tslint": {
       "version": "6.1.3",
diff --git a/package.json b/package.json
index ed2147f..2727925 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "ngx-toastr": "^15.2.2",
     "rxjs": "^6.0.0",
     "sass": "^1.71.0",
-    "tslib": "^2.0.0",
+    "tslib": "^2.6.3",
     "xlsx": "^0.18.5",
     "zone.js": "~0.11.4"
   },