diff --git a/cumulocity-node-red-ui/package.json b/cumulocity-node-red-ui/package.json
index 7118dfc..2c5db14 100644
--- a/cumulocity-node-red-ui/package.json
+++ b/cumulocity-node-red-ui/package.json
@@ -27,7 +27,7 @@
     "@c8y/style": "1020.0.15",
     "ngx-bootstrap": "12.0.0",
     "rxjs": "^7.4.0",
-    "tslib": "^2.3.0",
+    "tslib": "^2.6.3",
     "zone.js": "~0.14.7"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index 21641f4..58e6037 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8921,7 +8921,7 @@ tree-kill@1.2.2:
   resolved "https://registry.npmjs.org/tree-kill/-/tree-kill-1.2.2.tgz"
   integrity sha512-L0Orpi8qGpRG//Nd+H90vFB+3iHnue1zSSGmNOOCh1GLJ7rUKVwV2HvijphGQS2UmhUZewS9VgvxYIdgr+fG1A==
 
-tslib@2.6.2, tslib@^2.0.0, tslib@^2.0.3, tslib@^2.1.0, tslib@^2.2.0, tslib@^2.3.0, tslib@^2.3.1, tslib@^2.4.0, tslib@^2.6.0:
+tslib@2.6.2:
   version "2.6.2"
   resolved "https://registry.npmjs.org/tslib/-/tslib-2.6.2.tgz"
   integrity sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q==
@@ -8931,6 +8931,11 @@ tslib@^1.8.0, tslib@^1.8.1:
   resolved "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz"
   integrity sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==
 
+tslib@^2.0.0, tslib@^2.0.3, tslib@^2.1.0, tslib@^2.2.0, tslib@^2.3.0, tslib@^2.3.1, tslib@^2.4.0, tslib@^2.6.0, tslib@^2.6.3:
+  version "2.6.3"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.6.3.tgz#0438f810ad7a9edcde7a241c3d80db693c8cbfe0"
+  integrity sha512-xNvxJEOUiWPGhUuUdQgAJPKOOJfGnIyKySOc09XkKsgdUV/3E2zvwZYdejjmRgPCgcym1juLH3226yA7sEFJKQ==
+
 tslint@^5.9.1:
   version "5.20.1"
   resolved "https://registry.npmjs.org/tslint/-/tslint-5.20.1.tgz"