diff --git a/.github/workflows/image.yml b/.github/workflows/image.yml
index bad5ee8..5def554 100644
--- a/.github/workflows/image.yml
+++ b/.github/workflows/image.yml
@@ -2,8 +2,10 @@ name: Build nicbet/phoenix
 
 on:
   push:
-    branches: master
-
+    branches:
+      - "!*"
+    tags:
+      - "v*"
 jobs:
   build:
     runs-on: ubuntu-latest
diff --git a/Dockerfile b/Dockerfile
index 43ccf05..312419e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,9 @@
 FROM elixir:1.12.3
 
+# Build Args
+ARG PHOENIX_VERSION=1.6.2
+ARG NODEJS_VERSION=16.x
+
 # Apt
 RUN apt-get update && apt-get upgrade -y
 RUN apt-get install -y apt-utils
@@ -7,12 +11,12 @@ RUN apt-get install -y build-essential
 RUN apt-get install -y inotify-tools
 
 # Nodejs
-RUN curl -sL https://deb.nodesource.com/setup_16.x | bash
+RUN curl -sL https://deb.nodesource.com/setup_${NODEJS_VERSION} | bash
 RUN apt-get install -y nodejs
 
 # Phoenix
 RUN mix local.hex --force
-RUN mix archive.install --force hex phx_new 1.6.2
+RUN mix archive.install --force hex phx_new #{PHOENIX_VERSION}
 RUN mix local.rebar --force
 
 # App Directory