diff --git a/Dockerfile b/Dockerfile
index f8b87f5..27d123d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:22.04@sha256:4f838adc7181d9039ac795a7d0aba05a9bd9ecd480d294483169c5def983b64d
+FROM ubuntu:26.04@sha256:b7f48194d4d8b763a478a621cdc81c27be222ba2206ca3ca6bc42b49685f3d9e
 
 # renovate: datasource=github-releases depName=github-actions-runner packageName=actions/runner
 ENV RUNNER_VERSION=2.335.1