diff --git a/package-lock.json b/package-lock.json
index 413372eba..7d9fce4f3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -64,7 +64,7 @@
         "mocha-test-container-support": "^0.2.0",
         "mri": "^1.2.0",
         "npm-run-all2": "^6.1.1",
-        "preact": ">=10.5.14 <=10.15.1",
+        "preact": "<=10.20.2",
         "prettier": "^3.2.5",
         "puppeteer": "^22.0.0",
         "raw-loader": "^4.0.2",
@@ -2039,16 +2039,6 @@
         "preact": "^10.11.2"
       }
     },
-    "node_modules/@bpmn-io/diagram-js-ui/node_modules/preact": {
-      "version": "10.20.1",
-      "resolved": "https://registry.npmjs.org/preact/-/preact-10.20.1.tgz",
-      "integrity": "sha512-JIFjgFg9B2qnOoGiYMVBtrcFxHqn+dNXbq76bVmcaHYJFYR4lW67AOcXgAYQQTDYXDOg/kTZrKPNCdRgJ2UJmw==",
-      "dev": true,
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/preact"
-      }
-    },
     "node_modules/@bpmn-io/draggle": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/@bpmn-io/draggle/-/draggle-4.0.0.tgz",
@@ -18388,8 +18378,9 @@
       }
     },
     "node_modules/preact": {
-      "version": "10.5.14",
-      "license": "MIT",
+      "version": "10.20.2",
+      "resolved": "https://registry.npmjs.org/preact/-/preact-10.20.2.tgz",
+      "integrity": "sha512-S1d1ernz3KQ+Y2awUxKakpfOg2CEmJmwOP+6igPx6dgr6pgDvenqYviyokWso2rhHvGtTlWWnJDa7RaPbQerTg==",
       "funding": {
         "type": "opencollective",
         "url": "https://opencollective.com/preact"
@@ -23612,14 +23603,6 @@
       "requires": {
         "htm": "^3.1.1",
         "preact": "^10.11.2"
-      },
-      "dependencies": {
-        "preact": {
-          "version": "10.20.1",
-          "resolved": "https://registry.npmjs.org/preact/-/preact-10.20.1.tgz",
-          "integrity": "sha512-JIFjgFg9B2qnOoGiYMVBtrcFxHqn+dNXbq76bVmcaHYJFYR4lW67AOcXgAYQQTDYXDOg/kTZrKPNCdRgJ2UJmw==",
-          "dev": true
-        }
       }
     },
     "@bpmn-io/draggle": {
@@ -35099,7 +35082,9 @@
       "dev": true
     },
     "preact": {
-      "version": "10.5.14"
+      "version": "10.20.2",
+      "resolved": "https://registry.npmjs.org/preact/-/preact-10.20.2.tgz",
+      "integrity": "sha512-S1d1ernz3KQ+Y2awUxKakpfOg2CEmJmwOP+6igPx6dgr6pgDvenqYviyokWso2rhHvGtTlWWnJDa7RaPbQerTg=="
     },
     "prelude-ls": {
       "version": "1.2.1",
diff --git a/package.json b/package.json
index 4356a5e14..e7554fc71 100644
--- a/package.json
+++ b/package.json
@@ -113,7 +113,7 @@
     "mocha-test-container-support": "^0.2.0",
     "mri": "^1.2.0",
     "npm-run-all2": "^6.1.1",
-    "preact": ">=10.5.14 <=10.15.1",
+    "preact": "<=10.20.2",
     "prettier": "^3.2.5",
     "puppeteer": "^22.0.0",
     "raw-loader": "^4.0.2",