diff --git a/package-lock.json b/package-lock.json
index 49147db042..a50c590839 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,7 +19,7 @@
         "@rails/ujs": "^7.1.600",
         "@stimulus-components/rails-nested-form": "^5.0.0",
         "@tailwindcss/cli": "^4.3.2",
-        "add-to-calendar-button": "^3.1.0",
+        "add-to-calendar-button": "^3.5.1",
         "datatables.net-dt": "^1.13.11",
         "esbuild": "^0.28.2",
         "jquery": "^3.7.1",
@@ -4664,13 +4664,13 @@
       }
     },
     "node_modules/add-to-calendar-button": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/add-to-calendar-button/-/add-to-calendar-button-3.1.0.tgz",
-      "integrity": "sha512-BDkhXq45pi2gaRaHFI4ibP+nuv5B55IODD+jx1GYNAtiECPot/mozhtAxLAB4tm1ISy4Qyp9LTU8P42sPo2Njw==",
+      "version": "3.5.1",
+      "resolved": "https://registry.npmjs.org/add-to-calendar-button/-/add-to-calendar-button-3.5.1.tgz",
+      "integrity": "sha512-+InKcPThniURrBC9/LKcZaBXfLvoR7CR5SkfX2lM3r9+KeHMnGnpAbyfGErUrLkV5+dqvrtUP30wSY0PIqCHGg==",
       "license": "ELv2",
       "dependencies": {
         "lit": "^3.3.3",
-        "timezones-ical-library": "^2.3.2"
+        "timezones-ical-library": "^2.4.0"
       },
       "engines": {
         "node": ">=18.17.0",
@@ -12368,9 +12368,9 @@
       }
     },
     "node_modules/timezones-ical-library": {
-      "version": "2.3.2",
-      "resolved": "https://registry.npmjs.org/timezones-ical-library/-/timezones-ical-library-2.3.2.tgz",
-      "integrity": "sha512-AEhFhnhx6jI40kbcZ+rnpDnvb9raIvkyJGuBJvr6a1tfsbHWVM0oIqxbDZ3h8o/4m/x7lAXW9z+Abahdrlwn3Q==",
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/timezones-ical-library/-/timezones-ical-library-2.4.0.tgz",
+      "integrity": "sha512-6mIzeo1ihu7zkWMrfW9CZNw5Gjv/rvgL7MVKMJ55XQAL6qysLfkX8GsKC1fFExzYqJOvHLLSIGcA8Qnr/fS3fQ==",
       "license": "Apache-2.0"
     },
     "node_modules/tldts": {
diff --git a/package.json b/package.json
index e94a77983b..12a12c8cdb 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "@rails/ujs": "^7.1.600",
     "@stimulus-components/rails-nested-form": "^5.0.0",
     "@tailwindcss/cli": "^4.3.2",
-    "add-to-calendar-button": "^3.1.0",
+    "add-to-calendar-button": "^3.5.1",
     "datatables.net-dt": "^1.13.11",
     "esbuild": "^0.28.2",
     "jquery": "^3.7.1",