diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index 729eff9..dafd09c 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -1,4 +1,4 @@
-FROM nicbet/phoenix:1.6.11
+FROM nicbet/phoenix:1.6.12
 
 RUN apt-get install -y ruby \
   && gem install --no-document htmlbeautifier -v 1.3.1 \
diff --git a/Dockerfile b/Dockerfile
index e95d946..12f0f66 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
-FROM elixir:1.13.4
+FROM elixir:1.14.0
 
 # Build Args
-ARG PHOENIX_VERSION=1.6.11
+ARG PHOENIX_VERSION=1.6.12
 ARG NODEJS_VERSION=16.x
 
 # Apt
diff --git a/Makefile b/Makefile
index e7682cd..200cac6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 OWNER = nicbet
 IMAGE = phoenix
 TAG = $(OWNER)/$(IMAGE)
-VERSION = 1.6.11
+VERSION = 1.6.12
 
 all: test
 
diff --git a/README.md b/README.md
index 51b6e01..0e7c84c 100644
--- a/README.md
+++ b/README.md
@@ -14,11 +14,11 @@ Maybe you are working on multiple different projects, built with different versi
 
 To initialize a new development environment, clone this repository. You can specify a version tag to target a particular Phoenix framework version. We automatically pin the Elixir version of each release to the version of Elixir that was available at the time of the specific Phoenix framework release.
 
-For instance, to set up a dockerized development environment for a project called `hello-phoenix` using Phoenix framework version `1.6.11` you would run:
+For instance, to set up a dockerized development environment for a project called `hello-phoenix` using Phoenix framework version `1.6.12` you would run:
 
 ```sh
 # Clone this repository into a new project folder
-git clone -b 1.6.11 https://github.com/nicbet/docker-phoenix ~/Projects/hello-phoenix
+git clone -b 1.6.12 https://github.com/nicbet/docker-phoenix ~/Projects/hello-phoenix
 
 # Go to the new project folder
 cd ~/Projects/hello-phoenix
diff --git a/docker-compose.yml b/docker-compose.yml
index 1f9bac1..955838c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -2,7 +2,7 @@
 version: "2"
 services:
   app:
-    image: nicbet/phoenix:1.6.11
+    image: nicbet/phoenix:1.6.12
     build: .
     ports:
       - "4000:4000"