diff --git a/server-ce/hotfix/4.2.1/Dockerfile b/server-ce/hotfix/4.2.1/Dockerfile
new file mode 100644
index 0000000000..2f956e7124
--- /dev/null
+++ b/server-ce/hotfix/4.2.1/Dockerfile
@@ -0,0 +1 @@
+FROM sharelatex/sharelatex:4.2.0