diff --git a/taskcluster/docker/index-task/Dockerfile b/taskcluster/docker/index-task/Dockerfile
index c8aac05e2..9dee50aa4 100644
--- a/taskcluster/docker/index-task/Dockerfile
+++ b/taskcluster/docker/index-task/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:24-alpine@sha256:8a32c8cf649a49915a66e81e7a609223c708d0adabf288ee3f4077d765542f85
+FROM node:26-alpine@sha256:8996bb5821d62a8fd9bb27c1cb07462f3fdce6e47d640c6a881ead0b064ce216
 
 ENV       NODE_ENV        production
 RUN       mkdir /app
diff --git a/taskcluster/docker/index-task/package.json b/taskcluster/docker/index-task/package.json
index 443ef56ca..e3ff89928 100644
--- a/taskcluster/docker/index-task/package.json
+++ b/taskcluster/docker/index-task/package.json
@@ -8,6 +8,6 @@
     "@taskcluster/client": "114.0.0"
   },
   "engines": {
-    "node": "^24"
+    "node": "^26.0.0"
   }
 }