diff --git a/messages.json b/messages.json
index 6fdfa3d..6e9b73b 100644
--- a/messages.json
+++ b/messages.json
@@ -9,5 +9,6 @@
     "0.18.0": "messages/0.18.0.txt",
     "0.19.0": "messages/0.19.0.txt",
     "0.20.0": "messages/0.20.0.txt",
-    "0.21.0": "messages/0.21.0.txt"
+    "0.21.0": "messages/0.21.0.txt",
+    "0.21.1": "messages/0.21.1.txt"
 }
diff --git a/messages/0.21.1.txt b/messages/0.21.1.txt
new file mode 100644
index 0000000..3576f65
--- /dev/null
+++ b/messages/0.21.1.txt
@@ -0,0 +1,4 @@
+New in Elm Language Support 0.21.1 (Nov 8, 2017)
+
+- Fix: Syntax definition now allows for numbers in module names.
+  (Thanks, @ianmackenzie!)