diff --git a/telegraf/Dockerfile b/telegraf/Dockerfile
index 67f6d5f..d59e27f 100644
--- a/telegraf/Dockerfile
+++ b/telegraf/Dockerfile
@@ -1,2 +1,5 @@
-FROM telegraf:1.28-alpine
+# 1.30+ required: older telegraf pins Docker API 1.24 in [[inputs.docker]],
+# which docker-ce >= 29 rejects (min supported API 1.40). Newer telegraf
+# negotiates the API version with the daemon.
+FROM telegraf:1.33-alpine
 COPY telegraf.conf /etc/telegraf/telegraf.conf