diff --git a/Containerfile b/Containerfile
index 474d34c..a5a3487 100644
--- a/Containerfile
+++ b/Containerfile
@@ -1,4 +1,4 @@
-FROM docker.io/thallian/confd-env:3.19-3.1.6.2
+FROM docker.io/thallian/confd-env:3.20-3.1.6.2
 
 RUN apk --no-cache add \
   ssmtp \