diff --git a/CHANGELOG.md b/CHANGELOG.md
index 17d7f23..1b4c8c3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,3 +9,4 @@
 * feature/github-ci: generated projects ship the shared GitHub CI, a VERSION file and the shared Renovate settings, which copier update leaves alone.
 * feature/makefile: generated projects ship a Makefile with build, format, format-dry-run, test and release targets in place of run.sh, with make in the dev container and the shared CI calling make.
 * feature/root-answers-file: generated projects keep their Copier answers in `.copier-py-answers.yml` at the root rather than in `.copier-generic-project/`; existing projects move the file once before their next update.
+* fix/devcontainer-timezone: the dev container, and CI with it, starts on hosts that have no /etc/timezone.
diff --git a/VERSION b/VERSION
index 1defe53..826e142 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-v2.1.0
+v2.1.1
diff --git a/template/.devcontainer/devcontainer.json.jinja b/template/.devcontainer/devcontainer.json.jinja
index 2b5d4ef..d3df70c 100644
--- a/template/.devcontainer/devcontainer.json.jinja
+++ b/template/.devcontainer/devcontainer.json.jinja
@@ -19,7 +19,6 @@
 
     "mounts": [
         "type=bind,source=/etc/localtime,target=/etc/localtime,readonly",
-        "type=bind,source=/etc/timezone,target=/etc/timezone,readonly",
         "source=${localWorkspaceFolder}/.devcontainer/.bash_history,target=/home/vscode/.bash_history,type=bind,consistency=cached"
     ],
 }