diff --git a/lapis-e2e/package-lock.json b/lapis-e2e/package-lock.json
index f28874c32..2cc5c63c9 100644
--- a/lapis-e2e/package-lock.json
+++ b/lapis-e2e/package-lock.json
@@ -11,7 +11,7 @@
         "@openapitools/openapi-generator-cli": "^2.41.0",
         "@types/chai": "^5.2.3",
         "@types/mocha": "^10.0.10",
-        "@types/node": "^24.12.4",
+        "@types/node": "^26.4.0",
         "chai": "^6.2.2",
         "js-yaml": "^5.4.1",
         "mocha": "^11.8.0",
@@ -916,12 +916,12 @@
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-      "version": "24.12.4",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-24.12.4.tgz",
-      "integrity": "sha512-GUUEShf+PBCGW2KaXwcIt3Yk+e3pkKwWKb9GSyM9WQVE+ep2jzmHdGsHzu4wgcZy5fN9FBdVzjpBQsYlpfpgLA==",
+      "version": "26.4.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.4.0.tgz",
+      "integrity": "sha512-faiGnoIrLH/V8cibOMEAZ8pMw6oXqSukl29ra4mN8GdaB2ZewzeaLj+INpV5N+Z1eKWzY+IzaIZH2EIR6YZRNQ==",
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~7.16.0"
+        "undici-types": "~8.3.0"
       }
     },
     "node_modules/@types/wrap-ansi": {
@@ -2992,9 +2992,9 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "7.16.0",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.16.0.tgz",
-      "integrity": "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw==",
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.3.0.tgz",
+      "integrity": "sha512-j375ScV60dom+YkPFIfTLcOiPxkN/buHz5GobjLhixFuANaNs3C9l4GmrWqejgXWJ7BbJcFYpTEUkS1Ge8bpZQ==",
       "license": "MIT"
     },
     "node_modules/universalify": {
diff --git a/lapis-e2e/package.json b/lapis-e2e/package.json
index 3f6a0316e..6ca405667 100644
--- a/lapis-e2e/package.json
+++ b/lapis-e2e/package.json
@@ -23,7 +23,7 @@
     "@openapitools/openapi-generator-cli": "^2.41.0",
     "@types/chai": "^5.2.3",
     "@types/mocha": "^10.0.10",
-    "@types/node": "^24.12.4",
+    "@types/node": "^26.4.0",
     "chai": "^6.2.2",
     "js-yaml": "^5.4.1",
     "mocha": "^11.8.0",