diff --git a/package-lock.json b/package-lock.json
index 40a3ee7..2292e60 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -32,7 +32,7 @@
         "eslint-plugin-prettier": "5.2.1",
         "eslint-plugin-security": "3.0.1",
         "fetch-mock": "12.2.0",
-        "happy-dom": "15.11.6",
+        "happy-dom": "16.2.9",
         "husky": "9.1.7",
         "lint-staged": "15.2.10",
         "prettier": "3.3.3",
@@ -3797,6 +3797,8 @@
       "integrity": "sha512-V0hjH4dGPh9Ao5p0MoRY6BVqtwCjhz6vI5LT8AJ55H+4g9/4vbHx1I54fS0XuclLhDHArPQCiMjDxjaL8fPxhw==",
       "dev": true,
       "license": "BSD-2-Clause",
+      "optional": true,
+      "peer": true,
       "engines": {
         "node": ">=0.12"
       },
@@ -5188,12 +5190,12 @@
       }
     },
     "node_modules/happy-dom": {
-      "version": "15.11.6",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-15.11.6.tgz",
-      "integrity": "sha512-elX7iUTu+5+3b2+NGQc0L3eWyq9jKhuJJ4GpOMxxT/c2pg9O3L5H3ty2VECX0XXZgRmmRqXyOK8brA2hDI6LsQ==",
+      "version": "16.2.9",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-16.2.9.tgz",
+      "integrity": "sha512-WlBDENS5IsffAY+ROmKId2Exgyo92oD+c26xodHftmU+5FPx/DqdL0T30RROewtE8Us5EN5qvVuHUieVuK7t8Q==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
-        "entities": "^4.5.0",
         "webidl-conversions": "^7.0.0",
         "whatwg-mimetype": "^3.0.0"
       },
@@ -12657,7 +12659,7 @@
     },
     "packages/operators": {
       "name": "@rxjs-collection/operators",
-      "version": "1.1.1",
+      "version": "1.1.2-beta.1",
       "license": "MIT",
       "dependencies": {
         "@rxjs-collection/observables": "*",
@@ -12673,7 +12675,7 @@
     },
     "packages/playground": {
       "name": "@rxjs-collection/playground",
-      "version": "1.0.0",
+      "version": "1.0.1-beta.1",
       "license": "MIT",
       "dependencies": {
         "@rxjs-collection/observables": "*",
diff --git a/package.json b/package.json
index 4076b22..0897032 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,7 @@
     "eslint-plugin-prettier": "5.2.1",
     "eslint-plugin-security": "3.0.1",
     "fetch-mock": "12.2.0",
-    "happy-dom": "15.11.6",
+    "happy-dom": "16.2.9",
     "husky": "9.1.7",
     "lint-staged": "15.2.10",
     "prettier": "3.3.3",