diff --git a/package-lock.json b/package-lock.json
index 0cc1c45..2598bea 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,8 +11,7 @@
       "dependencies": {
         "@lit/localize": "^0.12.2",
         "lit": "^3.3.1",
-        "magic-snowflakes": "^7.0.2",
-        "tslib": "^2.8.1"
+        "magic-snowflakes": "^7.0.2"
       },
       "devDependencies": {
         "@open-wc/testing-helpers": "^3.0.1",
@@ -34,6 +33,7 @@
         "prettier": "^3.6.2",
         "ts-lit-plugin": "^2.0.2",
         "tsc-alias": "^1.8.16",
+        "tslib": "^2.8.1",
         "typescript": "^5.9.3",
         "vite": "^7.2.2",
         "vitest": "^4.0.8",
@@ -7325,6 +7325,7 @@
       "version": "2.8.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
       "integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==",
+      "dev": true,
       "license": "0BSD"
     },
     "node_modules/type-check": {
diff --git a/package.json b/package.json
index a96d94a..8c3e78b 100644
--- a/package.json
+++ b/package.json
@@ -29,8 +29,7 @@
   "dependencies": {
     "@lit/localize": "^0.12.2",
     "lit": "^3.3.1",
-    "magic-snowflakes": "^7.0.2",
-    "tslib": "^2.8.1"
+    "magic-snowflakes": "^7.0.2"
   },
   "devDependencies": {
     "@open-wc/testing-helpers": "^3.0.1",
@@ -52,6 +51,7 @@
     "prettier": "^3.6.2",
     "ts-lit-plugin": "^2.0.2",
     "tsc-alias": "^1.8.16",
+    "tslib": "^2.8.1",
     "typescript": "^5.9.3",
     "vite": "^7.2.2",
     "vitest": "^4.0.8",