diff --git a/Dockerfile b/Dockerfile
index 3935c7a..de0a5fc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM thallian/confd-env:latest
+FROM docker.io/thallian/confd-env:3.16
 
 RUN apk --no-cache add \
 	rspamd \