diff --git a/Dockerfile b/Dockerfile
index 533a764f..a7094879 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
# Start from the code-server Debian base image
-FROM codercom/code-server:3.12.0
+FROM codercom/code-server:4.0.2
USER coder
diff --git a/guides/railway.md b/guides/railway.md
index c3b5ff5e..8614f9a5 100644
--- a/guides/railway.md
+++ b/guides/railway.md
@@ -8,7 +8,7 @@ Use Railway + code-server to get a dev environment that you can access from any
## Step 1: Click button to deploy
-[](https://railway.app/new/template?template=https%3A%2F%2Fgithub.com%2Fcdr%2Fdeploy-code-server&envs=PASSWORD%2CGIT_REPO&PASSWORDDesc=Your+password+to+log+in+to+code-server+with&GIT_REPODesc=A+git+repo+to+clone+and+open+in+code-server+%28ex.+https%3A%2F%2Fgithub.com%2Fcdr%2Fdocs.git%29)
+[](https://railway.app/button.svg)](https://railway.app/new/template?template=https%3A%2F%2Fgithub.com%2Fcoder%2Fdeploy-code-server&envs=PASSWORD%2CGIT_REPO&optionalEnvs=GIT_REPO&PASSWORDDesc=Your+password+to+log+in+to+code-server&GIT_REPODesc=A+git+repo+to+auto-clone+and+open+in+code-server+%28e.g+https%3A%2F%2Fgithub.com%2Fcoder%2Fdocs%29)
## Step 2: Configure & launch your environment
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