diff --git a/Dockerfile b/Dockerfile
index dbee3fc..2c066a4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,7 +15,6 @@ COPY package.json /usr/src/app/
 COPY . /usr/src/app
 RUN npm install
 
-# Currently at CodeMirror-5.29.0.
 # To upgrade, in host CodeMirror dir, do `git pull` and `git checkout tags/###`.
 # Running `npm run build` here to save a step.
 RUN cd /usr/src/app/CodeMirror && npm run build