diff --git a/package-lock.json b/package-lock.json
index 15f014501..94633cebe 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -630,6 +630,12 @@
           "requires": {
             "has-flag": "^4.0.0"
           }
+        },
+        "tslib": {
+          "version": "2.4.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.4.0.tgz",
+          "integrity": "sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ==",
+          "dev": true
         }
       }
     },
@@ -19749,9 +19755,9 @@
       }
     },
     "tslib": {
-      "version": "2.4.0",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.4.0.tgz",
-      "integrity": "sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ=="
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.5.0.tgz",
+      "integrity": "sha512-336iVw3rtn2BUK7ORdIAHTyxHGRIHVReokCR3XjbckJMK7ms8FysBfhLR8IXnAgy7T0PTPNBWKiH514FOW/WSg=="
     },
     "tsutils": {
       "version": "3.21.0",
diff --git a/package.json b/package.json
index d5bb775f0..3bda3bf0e 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
     "moment-es6": "1.0.0",
     "pdfjs-dist": "2.5.207",
     "rxjs": "6.6.6",
-    "tslib": "^2.0.0",
+    "tslib": "^2.5.0",
     "zone.js": "0.11.8"
   },
   "devDependencies": {