diff --git a/package-lock.json b/package-lock.json
index d29d8f43849..c879bfc18b3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -29378,7 +29378,8 @@
     },
     "node_modules/tslib": {
       "version": "1.14.1",
-      "license": "0BSD"
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
+      "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg=="
     },
     "node_modules/tsutils": {
       "version": "3.21.0",
@@ -32779,7 +32780,7 @@
         "@angular/platform-browser-dynamic": "18.0.3",
         "@angular/router": "18.0.3",
         "rxjs": "7.8.1",
-        "tslib": "2.6.2",
+        "tslib": "2.6.3",
         "zone.js": "0.14.7"
       },
       "devDependencies": {
@@ -33002,6 +33003,12 @@
         }
       }
     },
+    "packages/calcite-components-angular/node_modules/@angular-devkit/build-angular/node_modules/tslib": {
+      "version": "2.6.2",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.2.tgz",
+      "integrity": "sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q==",
+      "dev": true
+    },
     "packages/calcite-components-angular/node_modules/@angular-devkit/core": {
       "version": "18.0.4",
       "resolved": "https://registry.npmjs.org/@angular-devkit/core/-/core-18.0.4.tgz",
@@ -34160,8 +34167,9 @@
       }
     },
     "packages/calcite-components-angular/node_modules/tslib": {
-      "version": "2.6.2",
-      "license": "0BSD"
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.3.tgz",
+      "integrity": "sha512-xNvxJEOUiWPGhUuUdQgAJPKOOJfGnIyKySOc09XkKsgdUV/3E2zvwZYdejjmRgPCgcym1juLH3226yA7sEFJKQ=="
     },
     "packages/calcite-components-angular/node_modules/tuf-js": {
       "version": "2.2.1",
@@ -34745,7 +34753,7 @@
       "license": "SEE LICENSE.md",
       "dependencies": {
         "@esri/calcite-components": "^2.11.0-next.10",
-        "tslib": "2.6.2"
+        "tslib": "2.6.3"
       },
       "peerDependencies": {
         "@angular/common": ">=16.0.0",
diff --git a/packages/calcite-components-angular/package.json b/packages/calcite-components-angular/package.json
index 2bbebfa4bdc..bc6547a201c 100644
--- a/packages/calcite-components-angular/package.json
+++ b/packages/calcite-components-angular/package.json
@@ -20,7 +20,7 @@
     "@angular/platform-browser-dynamic": "18.0.3",
     "@angular/router": "18.0.3",
     "rxjs": "7.8.1",
-    "tslib": "2.6.2",
+    "tslib": "2.6.3",
     "zone.js": "0.14.7"
   },
   "devDependencies": {
diff --git a/packages/calcite-components-angular/projects/component-library/package.json b/packages/calcite-components-angular/projects/component-library/package.json
index 4b49260f7fa..0573beb6458 100644
--- a/packages/calcite-components-angular/projects/component-library/package.json
+++ b/packages/calcite-components-angular/projects/component-library/package.json
@@ -18,7 +18,7 @@
   "sideEffects": false,
   "dependencies": {
     "@esri/calcite-components": "^2.11.0-next.10",
-    "tslib": "2.6.2"
+    "tslib": "2.6.3"
   },
   "peerDependencies": {
     "@angular/common": ">=16.0.0",