diff --git a/resources/com/cadoles/lighthouse/Dockerfile b/resources/com/cadoles/lighthouse/Dockerfile
index b1bac17..3b30ebe 100644
--- a/resources/com/cadoles/lighthouse/Dockerfile
+++ b/resources/com/cadoles/lighthouse/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.13 as envtpl
+FROM golang:1.15 as envtpl
 
 ARG HTTP_PROXY=
 ARG HTTPS_PROXY=
@@ -14,7 +14,7 @@ RUN git clone https://github.com/subfuzion/envtpl /src \
     -ldflags "-X main.AppVersionMetadata=$(date -u +%s)" \
     -a -installsuffix cgo -o ./bin/envtpl ./cmd/envtpl/.
 
-FROM alpine:3.10
+FROM alpine:3.13
 
 ARG HTTP_PROXY=
 ARG HTTPS_PROXY=